diff --git a/Emby.Dlna/Configuration/DlnaOptions.cs b/Emby.Dlna/Configuration/DlnaOptions.cs
index e63a85860..5ceeb5530 100644
--- a/Emby.Dlna/Configuration/DlnaOptions.cs
+++ b/Emby.Dlna/Configuration/DlnaOptions.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 namespace Emby.Dlna.Configuration
diff --git a/Emby.Dlna/ConfigurationExtension.cs b/Emby.Dlna/ConfigurationExtension.cs
index fc02e1751..3ca43052a 100644
--- a/Emby.Dlna/ConfigurationExtension.cs
+++ b/Emby.Dlna/ConfigurationExtension.cs
@@ -1,4 +1,3 @@
-#nullable enable
 #pragma warning disable CS1591
 
 using Emby.Dlna.Configuration;
diff --git a/Emby.Dlna/ContentDirectory/ContentDirectoryService.cs b/Emby.Dlna/ContentDirectory/ContentDirectoryService.cs
index 2f3107450..7b8c50440 100644
--- a/Emby.Dlna/ContentDirectory/ContentDirectoryService.cs
+++ b/Emby.Dlna/ContentDirectory/ContentDirectoryService.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/ContentDirectory/ControlHandler.cs b/Emby.Dlna/ContentDirectory/ControlHandler.cs
index 90ba601b4..27c5b2268 100644
--- a/Emby.Dlna/ContentDirectory/ControlHandler.cs
+++ b/Emby.Dlna/ContentDirectory/ControlHandler.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 using System;
 using System.Collections.Generic;
 using System.Globalization;
diff --git a/Emby.Dlna/ControlRequest.cs b/Emby.Dlna/ControlRequest.cs
index 4ea4e4e48..8ee6325e9 100644
--- a/Emby.Dlna/ControlRequest.cs
+++ b/Emby.Dlna/ControlRequest.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System.IO;
diff --git a/Emby.Dlna/ControlResponse.cs b/Emby.Dlna/ControlResponse.cs
index d827eef26..a7f2d4a73 100644
--- a/Emby.Dlna/ControlResponse.cs
+++ b/Emby.Dlna/ControlResponse.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System.Collections.Generic;
diff --git a/Emby.Dlna/Didl/DidlBuilder.cs b/Emby.Dlna/Didl/DidlBuilder.cs
index c66bdbf22..2982ce97e 100644
--- a/Emby.Dlna/Didl/DidlBuilder.cs
+++ b/Emby.Dlna/Didl/DidlBuilder.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/Didl/StringWriterWithEncoding.cs b/Emby.Dlna/Didl/StringWriterWithEncoding.cs
index 2b86ea333..b66f53ece 100644
--- a/Emby.Dlna/Didl/StringWriterWithEncoding.cs
+++ b/Emby.Dlna/Didl/StringWriterWithEncoding.cs
@@ -9,7 +9,7 @@ namespace Emby.Dlna.Didl
 {
     public class StringWriterWithEncoding : StringWriter
     {
-        private readonly Encoding _encoding;
+        private readonly Encoding? _encoding;
 
         public StringWriterWithEncoding()
         {
diff --git a/Emby.Dlna/DlnaConfigurationFactory.cs b/Emby.Dlna/DlnaConfigurationFactory.cs
index 4c6ca869a..6cc6b73a0 100644
--- a/Emby.Dlna/DlnaConfigurationFactory.cs
+++ b/Emby.Dlna/DlnaConfigurationFactory.cs
@@ -1,4 +1,3 @@
-#nullable enable
 #pragma warning disable CS1591
 
 using System.Collections.Generic;
diff --git a/Emby.Dlna/DlnaManager.cs b/Emby.Dlna/DlnaManager.cs
index 5f2be07cf..a1b106704 100644
--- a/Emby.Dlna/DlnaManager.cs
+++ b/Emby.Dlna/DlnaManager.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/Emby.Dlna.csproj b/Emby.Dlna/Emby.Dlna.csproj
index 480621dd7..a40578e40 100644
--- a/Emby.Dlna/Emby.Dlna.csproj
+++ b/Emby.Dlna/Emby.Dlna.csproj
@@ -21,6 +21,7 @@
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <!-- Code Analyzers-->
diff --git a/Emby.Dlna/EventSubscriptionResponse.cs b/Emby.Dlna/EventSubscriptionResponse.cs
index 1b1bd426c..8c82dcbf6 100644
--- a/Emby.Dlna/EventSubscriptionResponse.cs
+++ b/Emby.Dlna/EventSubscriptionResponse.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System.Collections.Generic;
diff --git a/Emby.Dlna/Eventing/DlnaEventManager.cs b/Emby.Dlna/Eventing/DlnaEventManager.cs
index ff81e83b5..2e672b886 100644
--- a/Emby.Dlna/Eventing/DlnaEventManager.cs
+++ b/Emby.Dlna/Eventing/DlnaEventManager.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/Eventing/EventSubscription.cs b/Emby.Dlna/Eventing/EventSubscription.cs
index 40d73ee0e..4fd7f8169 100644
--- a/Emby.Dlna/Eventing/EventSubscription.cs
+++ b/Emby.Dlna/Eventing/EventSubscription.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/Main/DlnaEntryPoint.cs b/Emby.Dlna/Main/DlnaEntryPoint.cs
index bdfe430cf..0309926ab 100644
--- a/Emby.Dlna/Main/DlnaEntryPoint.cs
+++ b/Emby.Dlna/Main/DlnaEntryPoint.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/Device.cs b/Emby.Dlna/PlayTo/Device.cs
index abd99bbc3..5fa1fd589 100644
--- a/Emby.Dlna/PlayTo/Device.cs
+++ b/Emby.Dlna/PlayTo/Device.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/DeviceInfo.cs b/Emby.Dlna/PlayTo/DeviceInfo.cs
index d3daab9e0..2acfff4eb 100644
--- a/Emby.Dlna/PlayTo/DeviceInfo.cs
+++ b/Emby.Dlna/PlayTo/DeviceInfo.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System.Collections.Generic;
diff --git a/Emby.Dlna/PlayTo/MediaChangedEventArgs.cs b/Emby.Dlna/PlayTo/MediaChangedEventArgs.cs
index dabd079af..2bc4d8cc2 100644
--- a/Emby.Dlna/PlayTo/MediaChangedEventArgs.cs
+++ b/Emby.Dlna/PlayTo/MediaChangedEventArgs.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/PlayToController.cs b/Emby.Dlna/PlayTo/PlayToController.cs
index ee09cc65a..1e6a5fadb 100644
--- a/Emby.Dlna/PlayTo/PlayToController.cs
+++ b/Emby.Dlna/PlayTo/PlayToController.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/PlayToManager.cs b/Emby.Dlna/PlayTo/PlayToManager.cs
index f2f526221..35bf5927c 100644
--- a/Emby.Dlna/PlayTo/PlayToManager.cs
+++ b/Emby.Dlna/PlayTo/PlayToManager.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/PlaybackProgressEventArgs.cs b/Emby.Dlna/PlayTo/PlaybackProgressEventArgs.cs
index d14617c8a..c7d2b28df 100644
--- a/Emby.Dlna/PlayTo/PlaybackProgressEventArgs.cs
+++ b/Emby.Dlna/PlayTo/PlaybackProgressEventArgs.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/PlaybackStartEventArgs.cs b/Emby.Dlna/PlayTo/PlaybackStartEventArgs.cs
index 3f8d55263..f8a14f411 100644
--- a/Emby.Dlna/PlayTo/PlaybackStartEventArgs.cs
+++ b/Emby.Dlna/PlayTo/PlaybackStartEventArgs.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/PlaybackStoppedEventArgs.cs b/Emby.Dlna/PlayTo/PlaybackStoppedEventArgs.cs
index deeb47918..6661f92ac 100644
--- a/Emby.Dlna/PlayTo/PlaybackStoppedEventArgs.cs
+++ b/Emby.Dlna/PlayTo/PlaybackStoppedEventArgs.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/PlaylistItem.cs b/Emby.Dlna/PlayTo/PlaylistItem.cs
index 85846166c..5056e69ae 100644
--- a/Emby.Dlna/PlayTo/PlaylistItem.cs
+++ b/Emby.Dlna/PlayTo/PlaylistItem.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using MediaBrowser.Model.Dlna;
diff --git a/Emby.Dlna/PlayTo/PlaylistItemFactory.cs b/Emby.Dlna/PlayTo/PlaylistItemFactory.cs
index e28840a89..657491303 100644
--- a/Emby.Dlna/PlayTo/PlaylistItemFactory.cs
+++ b/Emby.Dlna/PlayTo/PlaylistItemFactory.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System.IO;
diff --git a/Emby.Dlna/PlayTo/SsdpHttpClient.cs b/Emby.Dlna/PlayTo/SsdpHttpClient.cs
index d9f1ce490..f14f73bb6 100644
--- a/Emby.Dlna/PlayTo/SsdpHttpClient.cs
+++ b/Emby.Dlna/PlayTo/SsdpHttpClient.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/PlayTo/TransportCommands.cs b/Emby.Dlna/PlayTo/TransportCommands.cs
index cbcf66e45..b58669355 100644
--- a/Emby.Dlna/PlayTo/TransportCommands.cs
+++ b/Emby.Dlna/PlayTo/TransportCommands.cs
@@ -46,7 +46,7 @@ namespace Emby.Dlna.PlayTo
         {
             var serviceAction = new ServiceAction
             {
-                Name = container.GetValue(UPnpNamespaces.Svc + "name"),
+                Name = container.GetValue(UPnpNamespaces.Svc + "name") ?? string.Empty,
             };
 
             var argumentList = serviceAction.ArgumentList;
@@ -68,9 +68,9 @@ namespace Emby.Dlna.PlayTo
 
             return new Argument
             {
-                Name = container.GetValue(UPnpNamespaces.Svc + "name"),
-                Direction = container.GetValue(UPnpNamespaces.Svc + "direction"),
-                RelatedStateVariable = container.GetValue(UPnpNamespaces.Svc + "relatedStateVariable")
+                Name = container.GetValue(UPnpNamespaces.Svc + "name") ?? string.Empty,
+                Direction = container.GetValue(UPnpNamespaces.Svc + "direction") ?? string.Empty,
+                RelatedStateVariable = container.GetValue(UPnpNamespaces.Svc + "relatedStateVariable") ?? string.Empty
             };
         }
 
@@ -89,8 +89,8 @@ namespace Emby.Dlna.PlayTo
 
             return new StateVariable
             {
-                Name = container.GetValue(UPnpNamespaces.Svc + "name"),
-                DataType = container.GetValue(UPnpNamespaces.Svc + "dataType"),
+                Name = container.GetValue(UPnpNamespaces.Svc + "name") ?? string.Empty,
+                DataType = container.GetValue(UPnpNamespaces.Svc + "dataType") ?? string.Empty,
                 AllowedValues = allowedValues
             };
         }
@@ -166,7 +166,7 @@ namespace Emby.Dlna.PlayTo
             return string.Format(CultureInfo.InvariantCulture, CommandBase, action.Name, xmlNamesapce, stateString);
         }
 
-        private string BuildArgumentXml(Argument argument, string value, string commandParameter = "")
+        private string BuildArgumentXml(Argument argument, string? value, string commandParameter = "")
         {
             var state = StateVariables.FirstOrDefault(a => string.Equals(a.Name, argument.RelatedStateVariable, StringComparison.OrdinalIgnoreCase));
 
diff --git a/Emby.Dlna/PlayTo/uBaseObject.cs b/Emby.Dlna/PlayTo/uBaseObject.cs
index 0d9478e42..02d2da58d 100644
--- a/Emby.Dlna/PlayTo/uBaseObject.cs
+++ b/Emby.Dlna/PlayTo/uBaseObject.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/Server/DescriptionXmlBuilder.cs b/Emby.Dlna/Server/DescriptionXmlBuilder.cs
index 09525aae4..3f3dfccd3 100644
--- a/Emby.Dlna/Server/DescriptionXmlBuilder.cs
+++ b/Emby.Dlna/Server/DescriptionXmlBuilder.cs
@@ -250,7 +250,8 @@ namespace Emby.Dlna.Server
 
             url = _serverAddress.TrimEnd('/') + "/dlna/" + _serverUdn + "/" + url.TrimStart('/');
 
-            return SecurityElement.Escape(url);
+            // TODO: @bond remove null-coalescing operator when https://github.com/dotnet/runtime/pull/52442 is merged/released
+            return SecurityElement.Escape(url) ?? string.Empty;
         }
 
         private IEnumerable<DeviceIcon> GetIcons()
diff --git a/Emby.Dlna/Service/BaseControlHandler.cs b/Emby.Dlna/Service/BaseControlHandler.cs
index fda8346f9..904c23d99 100644
--- a/Emby.Dlna/Service/BaseControlHandler.cs
+++ b/Emby.Dlna/Service/BaseControlHandler.cs
@@ -47,7 +47,7 @@ namespace Emby.Dlna.Service
 
         private async Task<ControlResponse> ProcessControlRequestInternalAsync(ControlRequest request)
         {
-            ControlRequestInfo requestInfo = null;
+            ControlRequestInfo? requestInfo = null;
 
             using (var streamReader = new StreamReader(request.InputXml, Encoding.UTF8))
             {
@@ -151,7 +151,7 @@ namespace Emby.Dlna.Service
 
         private async Task<ControlRequestInfo> ParseBodyTagAsync(XmlReader reader)
         {
-            string namespaceURI = null, localName = null;
+            string? namespaceURI = null, localName = null;
 
             await reader.MoveToContentAsync().ConfigureAwait(false);
             await reader.ReadAsync().ConfigureAwait(false);
diff --git a/Emby.Dlna/Ssdp/DeviceDiscovery.cs b/Emby.Dlna/Ssdp/DeviceDiscovery.cs
index d9c6a93c7..391dda147 100644
--- a/Emby.Dlna/Ssdp/DeviceDiscovery.cs
+++ b/Emby.Dlna/Ssdp/DeviceDiscovery.cs
@@ -1,3 +1,5 @@
+#nullable disable
+
 #pragma warning disable CS1591
 
 using System;
diff --git a/Emby.Dlna/Ssdp/SsdpExtensions.cs b/Emby.Dlna/Ssdp/SsdpExtensions.cs
index e7a52f168..d00eb02b4 100644
--- a/Emby.Dlna/Ssdp/SsdpExtensions.cs
+++ b/Emby.Dlna/Ssdp/SsdpExtensions.cs
@@ -7,21 +7,21 @@ namespace Emby.Dlna.Ssdp
 {
     public static class SsdpExtensions
     {
-        public static string GetValue(this XElement container, XName name)
+        public static string? GetValue(this XElement container, XName name)
         {
             var node = container.Element(name);
 
             return node?.Value;
         }
 
-        public static string GetAttributeValue(this XElement container, XName name)
+        public static string? GetAttributeValue(this XElement container, XName name)
         {
             var node = container.Attribute(name);
 
             return node?.Value;
         }
 
-        public static string GetDescendantValue(this XElement container, XName name)
+        public static string? GetDescendantValue(this XElement container, XName name)
             => container.Descendants(name).FirstOrDefault()?.Value;
     }
 }