diff --git a/reactos/include/ntos/types.h b/reactos/include/ntos/types.h
index 238d8911164..5a968fb4474 100644
--- a/reactos/include/ntos/types.h
+++ b/reactos/include/ntos/types.h
@@ -170,7 +170,7 @@ typedef union _ULARGE_INTEGER
   {
     DWORD LowPart;
     DWORD HighPart;
-  } u;
+  };
 #endif /* ANONYMOUSUNIONS */
   ULONGLONG QuadPart;
 } ULARGE_INTEGER, *PULARGE_INTEGER;