diff --git a/target/linux/apm821xx/base-files/etc/init.d/hwmon_fancontrol b/target/linux/apm821xx/base-files/etc/init.d/hwmon_fancontrol
old mode 100644
new mode 100755
index d38964e0152..c1f159cafe4
--- a/target/linux/apm821xx/base-files/etc/init.d/hwmon_fancontrol
+++ b/target/linux/apm821xx/base-files/etc/init.d/hwmon_fancontrol
@@ -9,7 +9,7 @@ boot() {
 	case $(board_name) in
 	netgear,wndr4700)
 		path_to_hwmon='/sys/devices/platform/plb/plb:opb/4ef600700.i2c/i2c-0/0-001b/hwmon/hwmon1'
-		echo 1 > "$path_to_hwmon/pwm1_enable"
+		echo 1 > "$path_to_hwmon/pwm1_mode"
 		;;
 	esac
 }