diff --git a/reactos/w32api/include/ddk/winddk.h b/reactos/w32api/include/ddk/winddk.h
index 09bbba0392e..f8b8aac5a6b 100644
--- a/reactos/w32api/include/ddk/winddk.h
+++ b/reactos/w32api/include/ddk/winddk.h
@@ -7111,8 +7111,6 @@ IoReuseIrp(
                                _InvokeOnCancel) \
 { \
   PIO_STACK_LOCATION _IrpSp; \
-  ASSERT(_InvokeOnSuccess || _InvokeOnError || _InvokeOnCancel ? \
-    _CompletionRoutine != NULL : TRUE); \
   _IrpSp = IoGetNextIrpStackLocation(_Irp); \
   _IrpSp->CompletionRoutine = (PIO_COMPLETION_ROUTINE)(_CompletionRoutine); \
 	_IrpSp->Context = (_Context); \