diff --git a/channels/smartcard/client/smartcard_main.c b/channels/smartcard/client/smartcard_main.c
index ccdb6ba4c..9564ddbaf 100644
--- a/channels/smartcard/client/smartcard_main.c
+++ b/channels/smartcard/client/smartcard_main.c
@@ -196,9 +196,12 @@ static void* smartcard_context_new(void* smartcard, SCARDCONTEXT hContext)
 		WLog_ERR(TAG, "MessageQueue_New failed!");
 		goto fail;
 	}
-	wObject* obj = MessageQueue_Object(pContext->IrpQueue);
-	WINPR_ASSERT(obj);
-	obj->fnObjectFree = smartcard_operation_queue_free;
+
+	{
+		wObject* obj = MessageQueue_Object(pContext->IrpQueue);
+		WINPR_ASSERT(obj);
+		obj->fnObjectFree = smartcard_operation_queue_free;
+	}
 
 	pContext->thread = CreateThread(NULL, 0, smartcard_context_thread, pContext, 0, NULL);