diff --git a/service/systemd/mosquitto.service.notify b/service/systemd/mosquitto.service.notify
index d88a8868..06772dda 100644
--- a/service/systemd/mosquitto.service.notify
+++ b/service/systemd/mosquitto.service.notify
@@ -11,9 +11,9 @@ ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
 ExecReload=/bin/kill -HUP $MAINPID
 Restart=on-failure
 ExecStartPre=/bin/mkdir -m 740 -p /var/log/mosquitto
-ExecStartPre=/bin/chown mosquitto /var/log/mosquitto
+ExecStartPre=/bin/chown mosquitto:mosquitto /var/log/mosquitto
 ExecStartPre=/bin/mkdir -m 740 -p /run/mosquitto
-ExecStartPre=/bin/chown mosquitto /run/mosquitto
+ExecStartPre=/bin/chown mosquitto:mosquitto /run/mosquitto
 
 [Install]
 WantedBy=multi-user.target
diff --git a/service/systemd/mosquitto.service.simple b/service/systemd/mosquitto.service.simple
index 80efecd4..15ee0d62 100644
--- a/service/systemd/mosquitto.service.simple
+++ b/service/systemd/mosquitto.service.simple
@@ -9,9 +9,9 @@ ExecStart=/usr/sbin/mosquitto -c /etc/mosquitto/mosquitto.conf
 ExecReload=/bin/kill -HUP $MAINPID
 Restart=on-failure
 ExecStartPre=/bin/mkdir -m 740 -p /var/log/mosquitto
-ExecStartPre=/bin/chown mosquitto /var/log/mosquitto
+ExecStartPre=/bin/chown mosquitto:mosquitto /var/log/mosquitto
 ExecStartPre=/bin/mkdir -m 740 -p /run/mosquitto
-ExecStartPre=/bin/chown mosquitto /run/mosquitto
+ExecStartPre=/bin/chown mosquitto:mosquitto /run/mosquitto
 
 [Install]
 WantedBy=multi-user.target