diff --git a/core/mac/inc/qwlan_version.h b/core/mac/inc/qwlan_version.h
index b9a87dec49e4f..a3b36bb8c6d89 100644
--- a/core/mac/inc/qwlan_version.h
+++ b/core/mac/inc/qwlan_version.h
@@ -41,9 +41,9 @@
 #define QWLAN_VERSION_MAJOR            5
 #define QWLAN_VERSION_MINOR            2
 #define QWLAN_VERSION_PATCH            0
-#define QWLAN_VERSION_EXTRA            "R"
+#define QWLAN_VERSION_EXTRA            "S"
 #define QWLAN_VERSION_BUILD            74
 
-#define QWLAN_VERSIONSTR               "5.2.0.74R"
+#define QWLAN_VERSIONSTR               "5.2.0.74S"
 
 #endif /* QWLAN_VERSION_H */