diff --git a/x-ui.service.arch b/x-ui.service.arch
index 8251bec61..b001db92d 100644
--- a/x-ui.service.arch
+++ b/x-ui.service.arch
@@ -9,7 +9,7 @@ Environment="XRAY_VMESS_AEAD_FORCED=false"
 Type=simple
 WorkingDirectory=/usr/local/x-ui/
 ExecStart=/usr/local/x-ui/x-ui
-ExecReload=kill -USR1 $MAINPID
+ExecReload=/bin/kill -USR1 $MAINPID
 Restart=on-failure
 RestartSec=5s
 
diff --git a/x-ui.service.debian b/x-ui.service.debian
index 4902c5fe9..d101ce663 100644
--- a/x-ui.service.debian
+++ b/x-ui.service.debian
@@ -9,7 +9,7 @@ Environment="XRAY_VMESS_AEAD_FORCED=false"
 Type=simple
 WorkingDirectory=/usr/local/x-ui/
 ExecStart=/usr/local/x-ui/x-ui
-ExecReload=kill -USR1 $MAINPID
+ExecReload=/bin/kill -USR1 $MAINPID
 Restart=on-failure
 RestartSec=5s
 
diff --git a/x-ui.service.rhel b/x-ui.service.rhel
index 696a9c12f..70912bc9a 100644
--- a/x-ui.service.rhel
+++ b/x-ui.service.rhel
@@ -9,7 +9,7 @@ Environment="XRAY_VMESS_AEAD_FORCED=false"
 Type=simple
 WorkingDirectory=/usr/local/x-ui/
 ExecStart=/usr/local/x-ui/x-ui
-ExecReload=kill -USR1 $MAINPID
+ExecReload=/bin/kill -USR1 $MAINPID
 Restart=on-failure
 RestartSec=5s