diff --git a/make/topdir.mk b/make/topdir.mk
index cde44114..9cac5bb3 100644
--- a/make/topdir.mk
+++ b/make/topdir.mk
@@ -119,7 +119,7 @@ TD_COPY_SRC_PATH             = $(subst :,$(space),$(JW_PKG_TOPDIR_COPY_PATH))
 TD_GENERATE_FILES           += $(TD_COPY_FILES)
 
 all: config
-format:
+format: topdir
 check-syntax: topdir
 check-format: topdir
 check: check-syntax check-format