diff --git a/rootfs/usr/lib/systemd/system/inputplumber.service b/rootfs/usr/lib/systemd/system/inputplumber.service
index 44a4ad58..530d3d5e 100644
--- a/rootfs/usr/lib/systemd/system/inputplumber.service
+++ b/rootfs/usr/lib/systemd/system/inputplumber.service
@@ -6,6 +6,7 @@ Type=dbus
 BusName=org.shadowblip.InputPlumber
 Environment=LOG_LEVEL=info
 ExecStart=/usr/bin/inputplumber
+ProtectSystem=full
 
 [Install]
 WantedBy=multi-user.target