diff --git a/package/lean/mt/drivers/mt_wifi/files/firmware.sh b/package/lean/mt/drivers/mt_wifi/files/firmware.sh
index abdade9c7..bcc8240ea 100644
--- a/package/lean/mt/drivers/mt_wifi/files/firmware.sh
+++ b/package/lean/mt/drivers/mt_wifi/files/firmware.sh
@@ -1,5 +1,5 @@
 #!/bin/sh /etc/rc.common
-chmod 777 /sbin/mtkwifi
+chmod 0755 /sbin/mtkwifi
 START=15
 STOP=15