diff --git a/Makefile.pdlibbuilder b/Makefile.pdlibbuilder
index bc6cad64..79f2d51d 100644
--- a/Makefile.pdlibbuilder
+++ b/Makefile.pdlibbuilder
@@ -1133,5 +1133,5 @@ coffee:
 
 
 # for syntax highlighting in vim and github
-# vim: set filetype=make
+# vim: set filetype=make: