diff --git a/src/Sonarr.Http/REST/RestController.cs b/src/Sonarr.Http/REST/RestController.cs
index 13c51cd4b..180b2a25a 100644
--- a/src/Sonarr.Http/REST/RestController.cs
+++ b/src/Sonarr.Http/REST/RestController.cs
@@ -88,7 +88,7 @@ public override void OnActionExecuting(ActionExecutingContext context)
             }
 
             var attributes = descriptor.MethodInfo.CustomAttributes;
-            if (attributes.Any(x => VALIDATE_ID_ATTRIBUTES.Contains(x.GetType())) && !skipValidate)
+            if (attributes.Any(x => VALIDATE_ID_ATTRIBUTES.Contains(x.AttributeType)) && !skipValidate)
             {
                 if (context.ActionArguments.TryGetValue("id", out var idObj))
                 {