diff --git a/lib/inc/RedisVidIndexGenerator.h b/lib/inc/RedisVidIndexGenerator.h
index 1f0fa4e2d7f1..61b3361a0277 100644
--- a/lib/inc/RedisVidIndexGenerator.h
+++ b/lib/inc/RedisVidIndexGenerator.h
@@ -1,3 +1,5 @@
+#pragma once
+
 #include "OidIndexGenerator.h"
 
 #include "swss/redisclient.h"