diff --git a/os_dep/linux/ioctl_linux.c b/os_dep/linux/ioctl_linux.c
index 3ff1564..d824dc5 100644
--- a/os_dep/linux/ioctl_linux.c
+++ b/os_dep/linux/ioctl_linux.c
@@ -863,7 +863,7 @@ static int wpa_set_auth_algs(struct net_device *dev, u32 value)
 static int wpa_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;
 	_adapter *padapter = (_adapter *)rtw_netdev_priv(dev);
 	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;