diff --git a/mk/px4_targets.mk b/mk/px4_targets.mk
index 02066befa7..75fc92fd1b 100644
--- a/mk/px4_targets.mk
+++ b/mk/px4_targets.mk
@@ -3,6 +3,7 @@
 ifneq ($(PX4_ROOT),)
 
 px4:
+	make -C $(PX4_ROOT) configure_px4fmu
 	make -C $(PX4_ROOT) EXTERNAL_APPS=$(PWD)
 
 px4-clean: clean