diff --git a/ROMFS/px4fmu_test/init.d/rcS b/ROMFS/px4fmu_test/init.d/rcS
index 9082104075..1b5eee2467 100644
--- a/ROMFS/px4fmu_test/init.d/rcS
+++ b/ROMFS/px4fmu_test/init.d/rcS
@@ -61,9 +61,9 @@ else
 	echo "[param] FAILED loading $PARAM_FILE"
 fi
 
-if [ -f /etc/extras/px4io-v2.bin ]
+if [ -f /etc/extras/px4_io-v2_default.bin ]
 then
-	set io_file /etc/extras/px4io-v2.bin
+	set io_file /etc/extras/px4_io-v2_default.bin
 fi
 
 if px4io start