diff --git a/substitute.mk b/substitute.mk
index 940b1206bd..967ad257b6 100644
--- a/substitute.mk
+++ b/substitute.mk
@@ -37,3 +37,6 @@
 	 -e "s^@testPath\@^$(coreutils):$$(dirname $$(type -p expr))^g" \
 	 < $< > $@ || rm $@
 	if test -x $<; then chmod +x $@; fi
+
+$(CONFIG_HEADER):
+	true