diff --git a/Makefile b/Makefile
index 8b16d4bcb..723dbda3e 100644
--- a/Makefile
+++ b/Makefile
@@ -271,7 +271,7 @@ ALL_PROGRAMS += ccan/ccan/cdump/tools/cdump-enumstr
 # Can't add to ALL_OBJS, as that makes a circular dep.
 ccan/ccan/cdump/tools/cdump-enumstr.o: $(CCAN_HEADERS) Makefile
 
-ccan/config.h: ccan/tools/configurator/configurator
+ccan/config.h: ccan/tools/configurator/configurator Makefile
 	if $< --configurator-cc="$(CONFIGURATOR_CC)" $(CC) $(CFLAGS) > $@.new; then mv $@.new $@; else rm $@.new; exit 1; fi
 
 gen_version.h: FORCE