diff --git a/pyfan.service b/pyfan.service
index 616f1ac..a41efe0 100644
--- a/pyfan.service
+++ b/pyfan.service
@@ -1,5 +1,5 @@
 [Unit]
-Description=Start PyFan fan control
+Description=PID based fan control
 ConditionFileNotEmpty=/etc/pyfan
 After=lm_sensors.service