diff --git a/monitor/tach_sensor.cpp b/monitor/tach_sensor.cpp
index 5494450..6832ffe 100644
--- a/monitor/tach_sensor.cpp
+++ b/monitor/tach_sensor.cpp
@@ -81,7 +81,7 @@ TachSensor::TachSensor(Mode mode,
     _bus(bus),
     _fan(fan),
     _name(FAN_SENSOR_PATH + id),
-    _invName(path(fan.getName()) / id),
+    _invName(path(fan.getName()) / (id + "tach")),
     _hasTarget(hasTarget),
     _funcDelay(funcDelay),
     _interface(interface),