diff --git a/runtime/syntax/smith.vim b/runtime/syntax/smith.vim
index e05ce69..8242969 100644
--- a/runtime/syntax/smith.vim
+++ b/runtime/syntax/smith.vim
@@ -3,11 +3,8 @@
 " Maintainer:	Rafal M. Sulejman <rms@poczta.onet.pl>
 " Last Change:	21.07.2000
 
-" 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")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -28,24 +25,16 @@
 syn case match
 
 " 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_smith_syntax_inits")
-  if version < 508
-    let did_smith_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
 
-  HiLink smithRegister	Identifier
-  HiLink smithKeyword	Keyword
-	HiLink smithComment Comment
-	HiLink smithString String
-  HiLink smithNumber	Number
+HiLink smithRegister	Identifier
+HiLink smithKeyword	Keyword
+HiLink smithComment Comment
+HiLink smithString String
+HiLink smithNumber	Number
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "smith"