diff --git a/src/Radarr.Http/REST/RestController.cs b/src/Radarr.Http/REST/RestController.cs
index 848c06954..7f6192c70 100644
--- a/src/Radarr.Http/REST/RestController.cs
+++ b/src/Radarr.Http/REST/RestController.cs
@@ -74,7 +74,7 @@ namespace Radarr.Http.REST
             }
 
             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))
                 {