diff --git a/abuild.in b/abuild.in
index 3752307..36317d6 100644
--- a/abuild.in
+++ b/abuild.in
@@ -1,4 +1,5 @@
 #!/bin/ash -e
+# vim: set filetype=sh:
 
 # abuild - build apk packages (light version of makepkg)
 # Copyright (c) 2008-2015 Natanael Copa <ncopa@alpinelinux.org>