diff --git a/src/hel/hel.d b/src/hel/hel.d
index 7d4f9d8..b5a6c9c 100644
--- a/src/hel/hel.d
+++ b/src/hel/hel.d
@@ -139,7 +139,7 @@ extern (C) EFI_STATUS efi_main(EFI_HANDLE image_handle, EFI_SYSTEM_TABLE * st)
         get_memory_map();
 
         EFI_STATUS status = st.BootServices.ExitBootServices(image_handle, memory_map_key);
-        if ((status & 0xFFu) == (EFI_INVALID_PARAMETER & 0xFFu))
+        if (status == EFI_INVALID_PARAMETER)
         {
             continue;
         }