diff --git a/Makefile b/Makefile
index 6adbf765ee..6480286d2d 100644
--- a/Makefile
+++ b/Makefile
@@ -251,9 +251,7 @@ testbuild:
 # Unittest targets. Builds and runs the host-level
 # unit tests.
 .PHONY: tests
-tests:
-	$(Q) $(MAKE) generateuorbtopicheaders
-	$(Q) (cd $(PX4_BASE)/unittests && $(MAKE) unittests)
+tests:	generateuorbtopicheaders
 	$(Q) (mkdir -p $(PX4_BASE)/unittests/build && cd $(PX4_BASE)/unittests/build && cmake .. && $(MAKE) unittests)
 
 #