diff --git a/lib/gen_registry.ex b/lib/gen_registry.ex
index 44406ce..85fa78d 100644
--- a/lib/gen_registry.ex
+++ b/lib/gen_registry.ex
@@ -204,7 +204,7 @@ defmodule GenRegistry do
     Process.flag(:trap_exit, true)
 
     worker_type =
-      case worker_module.module_info[:attributes][:behaviour] do
+      case worker_module.module_info()[:attributes][:behaviour] do
         [:supervisor] -> :supervisor
         _ -> :worker
       end