diff --git a/ShadowsocksX-NG/start_kcptun.sh b/ShadowsocksX-NG/start_kcptun.sh
index 929c64d..1118f0b 100755
--- a/ShadowsocksX-NG/start_kcptun.sh
+++ b/ShadowsocksX-NG/start_kcptun.sh
@@ -7,5 +7,5 @@
 #  Copyright © 2017年 qiuyuzhou. All rights reserved.
 
 chmod 644 "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.kcptun.plist"
-launchctl load "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.kcptun.plist"
+launchctl load -wF "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.kcptun.plist"
 launchctl start com.qiuyuzhou.shadowsocksX-NG.kcptun
diff --git a/ShadowsocksX-NG/start_privoxy.sh b/ShadowsocksX-NG/start_privoxy.sh
index 3018dd6..eefa769 100755
--- a/ShadowsocksX-NG/start_privoxy.sh
+++ b/ShadowsocksX-NG/start_privoxy.sh
@@ -7,5 +7,5 @@
 #  Copyright © 2016年 zhfish. All rights reserved.
 
 chmod 644 "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.http.plist"
-launchctl load "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.http.plist"
+launchctl load -wF "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.http.plist"
 launchctl start com.qiuyuzhou.shadowsocksX-NG.http
diff --git a/ShadowsocksX-NG/start_ss_local.sh b/ShadowsocksX-NG/start_ss_local.sh
index 5a16145..2acccdf 100755
--- a/ShadowsocksX-NG/start_ss_local.sh
+++ b/ShadowsocksX-NG/start_ss_local.sh
@@ -7,5 +7,5 @@
 #  Copyright © 2016年 qiuyuzhou. All rights reserved.
 
 chmod 644 "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.local.plist"
-launchctl load "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.local.plist"
+launchctl load -wF "$HOME/Library/LaunchAgents/com.qiuyuzhou.shadowsocksX-NG.local.plist"
 launchctl start com.qiuyuzhou.shadowsocksX-NG.local