diff --git a/runtime/syntax/pf.vim b/runtime/syntax/pf.vim
new file mode 100644
index 0000000..394cfb3
--- /dev/null
+++ b/runtime/syntax/pf.vim
@@ -0,0 +1,75 @@
+" pf syntax file
+" Language:	OpenBSD packet filter configuration (pf.conf)
+" Maintainer:	Camiel Dobbelaar <cd@sentia.nl>
+" Last Change:	2003 May 27
+
+" For version 5.x: Clear all syntax items
+" For version 6.x: Quit when a syntax file was already loaded
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+setlocal foldmethod=syntax
+syn sync fromstart
+
+syn cluster	pfNotLS		contains=pfComment,pfTodo,pfVarAssign
+syn keyword	pfCmd		altq anchor antispoof binat nat pass
+syn keyword	pfCmd		queue rdr scrub table set
+syn keyword	pfService	auth bgp domain finger ftp http https ident
+syn keyword	pfService	imap irc isakmp kerberos mail nameserver nfs
+syn keyword	pfService	nntp ntp pop3 portmap pptp rpcbind rsync smtp
+syn keyword	pfService	snmp snmptrap socks ssh sunrpc syslog telnet
+syn keyword	pfService	tftp www
+syn keyword	pfTodo		TODO XXX contained
+syn keyword	pfWildAddr	all any
+syn match	pfCmd		/block\s/
+syn match	pfComment	/#.*$/ contains=pfTodo
+syn match	pfCont		/\\$/
+syn match	pfErrClose	/}/
+syn match	pfIPv4		/\d\{1,3}\.\d\{1,3}\.\d\{1,3}\.\d\{1,3}/
+syn match	pfIPv6		/[a-fA-F0-9:]*::[a-fA-F0-9:.]*/
+syn match	pfIPv6		/[a-fA-F0-9:]\+:[a-fA-F0-9:]\+:[a-fA-F0-9:.]\+/
+syn match	pfNetmask	/\/\d\+/
+syn match	pfNum		/[a-zA-Z0-9_:.]\@<!\d\+[a-zA-Z0-9_:.]\@!/
+syn match	pfTable		/<\s*[a-zA-Z][a-zA-Z0-9_]*\s*>/
+syn match	pfVar		/$[a-zA-Z][a-zA-Z0-9_]*/
+syn match	pfVarAssign	/^\s*[a-zA-Z][a-zA-Z0-9_]*\s*=/me=e-1
+syn region	pfFold1		start=/^#\{1}>/ end=/^#\{1,3}>/me=s-1 transparent fold
+syn region	pfFold2		start=/^#\{2}>/ end=/^#\{2,3}>/me=s-1 transparent fold
+syn region	pfFold3		start=/^#\{3}>/ end=/^#\{3}>/me=s-1 transparent fold
+syn region	pfList		start=/{/ end=/}/ transparent contains=ALLBUT,pfErrClose,@pfNotLS
+syn region	pfString	start=/"/ end=/"/ transparent contains=ALLBUT,pfString,@pfNotLS
+syn region	pfString	start=/'/ end=/'/ transparent contains=ALLBUT,pfString,@pfNotLS
+
+" Define the default highlighting.
+" For version 5.7 and earlier: only when not done already
+" For version 5.8 and later: only when an item doesn't have highlighting yet
+if version >= 508 || !exists("did_c_syn_inits")
+  if version < 508
+    let did_c_syn_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink pfCmd		Statement
+  HiLink pfComment	Comment
+  HiLink pfCont		Statement
+  HiLink pfErrClose	Error
+  HiLink pfIPv4		Type
+  HiLink pfIPv6		Type
+  HiLink pfNetmask	Constant
+  HiLink pfNum		Constant
+  HiLink pfService	Constant
+  HiLink pfTable	Identifier
+  HiLink pfTodo		Todo
+  HiLink pfVar		Identifier
+  HiLink pfVarAssign	Identifier
+  HiLink pfWildAddr	Type
+
+  delcommand HiLink
+endif
+
+let b:current_syntax = "pf"