diff --git a/DragonFruit.Common.Data/Serializers/SerializerResolver.cs b/DragonFruit.Common.Data/Serializers/SerializerResolver.cs
index 0cc458c..916b4f7 100644
--- a/DragonFruit.Common.Data/Serializers/SerializerResolver.cs
+++ b/DragonFruit.Common.Data/Serializers/SerializerResolver.cs
@@ -81,7 +81,7 @@ public static void Unregister<T>(DataDirection direction = DataDirection.All)
         /// </summary>
         public ISerializer Resolve(Type objectType, DataDirection direction)
         {
-            if (objectType.IsClass)
+            if (!objectType.IsClass)
             {
                 // at this point in time, we only support non-generic class
                 // this is because this isn't designed to filter generic types