diff --git a/drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_init.c b/drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_init.c
index 6d6febc642b03..ff70484d99715 100644
--- a/drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_init.c
+++ b/drivers/misc/mediatek/connectivity/wlan/gen2/os/linux/gl_init.c
@@ -3066,7 +3066,7 @@ static INT_32 wlanProbe(PVOID pvData)
 			struct sockaddr MacAddr;
 			UINT_32 u4SetInfoLen = 0;
 
-			kalMemZero(MacAddr.sa_data, sizeof(MacAddr.sa_data));
+			kalMemZero(MacAddr.sa_data, sizeof(MacAddr.sa_data_min));
 			rStatus = kalIoctl(prGlueInfo,
 					   wlanoidQueryCurrentAddr,
 					   &MacAddr.sa_data,