diff --git a/ROMFS/px4fmu_common/init.d/rc.interface b/ROMFS/px4fmu_common/init.d/rc.interface
index 6f34118bea..0a263dda99 100644
--- a/ROMFS/px4fmu_common/init.d/rc.interface
+++ b/ROMFS/px4fmu_common/init.d/rc.interface
@@ -117,7 +117,7 @@ fi
 #MindPX has not aux mixer
 if ver hwcmp MINDPX_V2
 then
-        set MIXER_AUX none
+	set MIXER_AUX none
 fi
 
 if ver hwcmp CRAZYFLIE