diff --git a/Makefile b/Makefile
index 8004cc2925..479ce74dc1 100644
--- a/Makefile
+++ b/Makefile
@@ -761,6 +761,8 @@ endif
 		$(call MESSAGE,"Executing post-build script $(s)"); \
 		$(EXTRA_ENV) $(s) $(TARGET_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep))
 
+	touch $(TARGET_DIR)/usr
+
 .PHONY: target-post-image
 target-post-image: $(TARGETS_ROOTFS) target-finalize
 	@$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \