diff --git a/lib/systemd/system/appgateservice.service b/lib/systemd/system/appgateservice.service
index 7a8faf7..f944300 100644
--- a/lib/systemd/system/appgateservice.service
+++ b/lib/systemd/system/appgateservice.service
@@ -12,8 +12,8 @@ ExecStart="/opt/appgate/service/appgateservice" --service
 ExecReload=/bin/kill -HUP $MAINPID
 Type=simple
 Restart=always
-InaccessibleDirectories=/media /boot /srv
-ReadOnlyDirectories=/etc /usr /bin /lib /lib64 /sbin /mnt
+InaccessibleDirectories=-/media -/boot -/srv
+ReadOnlyDirectories=-/etc -/usr -/bin -/lib -/lib64 -/sbin -/mnt
 PrivateDevices=true
 NoNewPrivileges=true
 PrivateTmp=true
diff --git a/lib/systemd/system/appgateservice@.service b/lib/systemd/system/appgateservice@.service
index 74faa34..269ffc4 100644
--- a/lib/systemd/system/appgateservice@.service
+++ b/lib/systemd/system/appgateservice@.service
@@ -11,8 +11,8 @@ ExecReload=/bin/kill -HUP $MAINPID
 Type=forking
 TimeoutStopSec=30
 Restart=always
-InaccessibleDirectories=/media /boot /srv
-ReadOnlyDirectories=/etc /usr /bin /lib /lib64 /sbin
+InaccessibleDirectories=-/media -/boot -/srv
+ReadOnlyDirectories=-/etc -/usr -/bin -/lib -/lib64 -/sbin
 PrivateDevices=true
 NoNewPrivileges=true
 PrivateTmp=true