diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 9789aed..ffc073a 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1555,6 +1555,8 @@
 #define WLAN_CIPHER_SUITE_WEP104	0x000FAC05
 #define WLAN_CIPHER_SUITE_AES_CMAC	0x000FAC06
 
+#define WLAN_CIPHER_SUITE_SMS4		0x00147201
+
 /* AKM suite selectors */
 #define WLAN_AKM_SUITE_8021X		0x000FAC01
 #define WLAN_AKM_SUITE_PSK		0x000FAC02