diff --git a/runtime/syntax/dylanintr.vim b/runtime/syntax/dylanintr.vim
index 11ef816..aaf2d74 100644
--- a/runtime/syntax/dylanintr.vim
+++ b/runtime/syntax/dylanintr.vim
@@ -4,11 +4,8 @@
 " Last Change:	Fri Sep 29 13:53:27 PDT 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
 
@@ -26,26 +23,18 @@
 "syn keyword intrMods pointer struct
 
 " 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_dylan_intr_syntax_inits")
-  if version < 508
-    let did_dylan_intr_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 dylanintrInfo		Special
-  HiLink dylanintrInterface	Operator
-  HiLink dylanintrMods		Type
-  HiLink dylanintrClass		StorageClass
-  HiLink dylanintrType		Type
-  HiLink dylanintrIncluded	String
-  HiLink dylanintrInclude	Include
+HiLink dylanintrInfo		Special
+HiLink dylanintrInterface	Operator
+HiLink dylanintrMods		Type
+HiLink dylanintrClass		StorageClass
+HiLink dylanintrType		Type
+HiLink dylanintrIncluded	String
+HiLink dylanintrInclude	Include
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "dylanintr"