diff --git a/mk/make.inc b/mk/make.inc
index 7421f82aa0..24e5ee255f 100644
--- a/mk/make.inc
+++ b/mk/make.inc
@@ -19,3 +19,4 @@ LIBRARIES += AP_RSSI
 LIBRARIES += AP_Proximity
 LIBRARIES += AP_Gripper
 LIBRARIES += AP_RTC
+LIBRARIES += AP_ROMFS