diff --git a/MediaBrowser.Api/Playback/BaseStreamingService.cs b/MediaBrowser.Api/Playback/BaseStreamingService.cs
index 5ecff74f9..9a264a7ba 100644
--- a/MediaBrowser.Api/Playback/BaseStreamingService.cs
+++ b/MediaBrowser.Api/Playback/BaseStreamingService.cs
@@ -286,7 +286,7 @@ namespace MediaBrowser.Api.Playback
                 return string.Empty;
             }
 
-            var param = string.Format(",ass={0}", path.Replace('\\', '/').Replace(":/", "\\:/"));
+            var param = string.Format(",ass='{0}'", path.Replace('\\', '/').Replace(":/", "\\:/"));
 
             if (startTimeTicks.HasValue)
             {