diff --git a/modules/netns-isolation.nix b/modules/netns-isolation.nix
index 5a19914..81acfc5 100644
--- a/modules/netns-isolation.nix
+++ b/modules/netns-isolation.nix
@@ -101,7 +101,7 @@ in {
     boot.kernel.sysctl."net.ipv4.ip_forward" = true;
 
     security.wrappers.netns-exec = {
-      source  = "${pkgs.nix-bitcoin.netns-exec}/netns-exec";
+      source = pkgs.nix-bitcoin.netns-exec;
       capabilities = "cap_sys_admin=ep";
       owner = cfg.allowedUser;
       permissions = "u+rx,g+rx,o-rwx";
diff --git a/pkgs/netns-exec/default.nix b/pkgs/netns-exec/default.nix
index bafd516..5998549 100644
--- a/pkgs/netns-exec/default.nix
+++ b/pkgs/netns-exec/default.nix
@@ -5,7 +5,6 @@ stdenv.mkDerivation {
   buildInputs = [ pkgs.libcap ];
   src = ./src;
   installPhase = ''
-    mkdir -p $out
-    cp main $out/netns-exec
+    cp main $out
   '';
 }