diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 8834c23d67fc..a4795afeeb9c 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -1967,7 +1967,7 @@ static int rtl8192_handle_assoc_response(struct net_device *dev,
 }
 
 
-void rtl8192_update_ratr_table(struct net_device *dev)
+static void rtl8192_update_ratr_table(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee80211;