diff --git a/runtime/ftplugin/yacc.vim b/runtime/ftplugin/yacc.vim
new file mode 100644
index 0000000..d95e1ee
--- /dev/null
+++ b/runtime/ftplugin/yacc.vim
@@ -0,0 +1,16 @@
+" Vim filetype plugin
+" Language:	Yacc
+" Maintainer:	Riley Bruins <ribru17@gmail.com>
+" Last Change:	2024 Jul 06
+
+if exists('b:did_ftplugin')
+  finish
+endif
+let b:did_ftplugin = 1
+
+" Set 'comments' to format dashed lists in comments.
+" Also include ///, used for Doxygen.
+setlocal comments=sO:*\ -,mO:*\ \ ,exO:*/,s1:/*,mb:*,ex:*/,:///,://
+setlocal commentstring=//\ %s
+
+let b:undo_ftplugin = 'setl com< cms<'