diff --git a/drivers/staging/r8188eu/hal/hal_intf.c b/drivers/staging/r8188eu/hal/hal_intf.c
index a6d589e..f27eba7 100644
--- a/drivers/staging/r8188eu/hal/hal_intf.c
+++ b/drivers/staging/r8188eu/hal/hal_intf.c
@@ -248,7 +248,7 @@
 #ifdef CONFIG_88EU_AP_MODE
 		struct sta_info *psta = NULL;
 		struct sta_priv *pstapriv = &adapt->stapriv;
-		if ((mac_id - 1) > 0)
+		if (mac_id >= 2)
 			psta = pstapriv->sta_aid[(mac_id - 1) - 1];
 		if (psta)
 			add_RATid(adapt, psta, 0);/* todo: based on rssi_level*/