diff --git a/zqueue.hpp b/zqueue.hpp
index 7b81318..463d1e0 100644
--- a/zqueue.hpp
+++ b/zqueue.hpp
@@ -1,4 +1,4 @@
-#pragma ocne
+#pragma once
 #include "cmsis_os.h"
 namespace iflytop {
 class ZQueue {