diff --git a/tools/make.inc b/tools/make.inc
index 471d98a9de..0da7a8b17c 100644
--- a/tools/make.inc
+++ b/tools/make.inc
@@ -1,3 +1,5 @@
+# -*- Makefile -*-
+
 $(OBJDIR)/%.o: %.c
 	@mkdir -p `dirname $@`
 	@echo "CC $<"