diff --git a/ROMFS/px4fmu_common/init.d/rc.sensors b/ROMFS/px4fmu_common/init.d/rc.sensors
index ea6b8d4f1e..a7c6a5b774 100644
--- a/ROMFS/px4fmu_common/init.d/rc.sensors
+++ b/ROMFS/px4fmu_common/init.d/rc.sensors
@@ -238,7 +238,7 @@ then
 fi
 
 # Start TMP102 temperature sensor
-if param compare SENS_EN_TMP102 1
+if param compare -s SENS_EN_TMP102 1
 then
 	tmp102 start -X
 fi