diff --git a/Makefile b/Makefile
index cd408c35bb..4cd0586437 100644
--- a/Makefile
+++ b/Makefile
@@ -110,7 +110,7 @@ endif
 define cmake-build
 +@if [ $(PX4_CMAKE_GENERATOR) = "Ninja" ] && [ -e $(PWD)/build_$@/Makefile ]; then rm -rf $(PWD)/build_$@; fi
 +@if [ ! -e $(PWD)/build_$@/CMakeCache.txt ]; then Tools/check_submodules.sh && mkdir -p $(PWD)/build_$@ && cd $(PWD)/build_$@ && cmake .. -G$(PX4_CMAKE_GENERATOR) -DCONFIG=$(1) || (cd .. && rm -rf $(PWD)/build_$@); fi
-+Tools/check_submodules.sh
++@Tools/check_submodules.sh
 +$(PX4_MAKE) -C $(PWD)/build_$@ $(PX4_MAKE_ARGS) $(ARGS)
 endef