diff --git a/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs b/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs
index 8a6225104c..9c76680c7e 100644
--- a/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs
+++ b/MediaBrowser.Controller/Resolvers/EntityResolutionHelper.cs
@@ -41,7 +41,8 @@ namespace MediaBrowser.Controller.Resolvers
                 ".flv",
                 ".f4v",
                 ".3gp",
-                ".webm"
+                ".webm",
+                ".mts"
         };
 
         /// <summary>