diff --git a/Emby.Server.Implementations/Activity/ActivityManager.cs b/Emby.Server.Implementations/Activity/ActivityManager.cs
index a434edd279..e504bc4d73 100644
--- a/Emby.Server.Implementations/Activity/ActivityManager.cs
+++ b/Emby.Server.Implementations/Activity/ActivityManager.cs
@@ -69,7 +69,7 @@ namespace Emby.Server.Implementations.Activity
                 }
             }
 
-            return result;
+            return result.AsEnumerable();
         }
     }
 }