diff --git a/Makefile b/Makefile
index 54f940659c..c024c65f78 100644
--- a/Makefile
+++ b/Makefile
@@ -756,6 +756,8 @@ 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
 	@rm -f $(ROOTFS_COMMON_TAR)