diff --git a/ROMFS/px4fmu_common/init.d/rc.sensors b/ROMFS/px4fmu_common/init.d/rc.sensors
index 9712b1d725..1b81685021 100644
--- a/ROMFS/px4fmu_common/init.d/rc.sensors
+++ b/ROMFS/px4fmu_common/init.d/rc.sensors
@@ -127,6 +127,9 @@ then
 	# External I2C bus
 	hmc5883 -C -X start
 
+	# Possible external compasses
+	ist8310 -C -b 2 start
+
 	# External I2C bus
 	lis3mdl -X start