diff --git a/drivers/staging/r8188eu/core/rtw_mlme_ext.c b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
index 6896379402a2..6b3d983bf91c 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme_ext.c
@@ -404,7 +404,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 		return;
 
 	index = (le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_STYPE) >> 4;
-	if (index > 13)
+	if (index > ARRAY_SIZE(mlme_sta_tbl))
 		return;
 	fct = mlme_sta_tbl[index];