diff --git a/os_dep/linux/ioctl_linux.c b/os_dep/linux/ioctl_linux.c
index a6c69d8..9c4ba08 100644
--- a/os_dep/linux/ioctl_linux.c
+++ b/os_dep/linux/ioctl_linux.c
@@ -6942,7 +6942,7 @@ out:
 static int rtw_set_encryption(struct net_device *dev, struct ieee_param *param, u32 param_len)
 {
 	int ret = 0;
-	u32 wep_key_idx, wep_key_len, wep_total_len;
+	u32 wep_key_idx, wep_key_len, wep_total_len = 0;
 	NDIS_802_11_WEP	*pwep = NULL;
 	struct sta_info *psta = NULL, *pbcmc_sta = NULL;
 	_adapter *padapter = (_adapter *)rtw_netdev_priv(dev);