diff --git a/core/mac/inc/qwlan_version.h b/core/mac/inc/qwlan_version.h
index a24cf73531..96a79faf85 100644
--- a/core/mac/inc/qwlan_version.h
+++ b/core/mac/inc/qwlan_version.h
@@ -32,9 +32,9 @@
 #define QWLAN_VERSION_MAJOR            5
 #define QWLAN_VERSION_MINOR            2
 #define QWLAN_VERSION_PATCH            1
-#define QWLAN_VERSION_EXTRA            "V"
+#define QWLAN_VERSION_EXTRA            "W"
 #define QWLAN_VERSION_BUILD            27
 
-#define QWLAN_VERSIONSTR               "5.2.1.27V"
+#define QWLAN_VERSIONSTR               "5.2.1.27W"
 
 #endif /* QWLAN_VERSION_H */