diff --git a/runtime/syntax/tli.vim b/runtime/syntax/tli.vim
index 5685a6c..e0e19ab 100644
--- a/runtime/syntax/tli.vim
+++ b/runtime/syntax/tli.vim
@@ -4,11 +4,8 @@
 " Last Change:	2001 May 10
 " Version:      1.0
 
-" 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
 
@@ -44,27 +41,19 @@
 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_tli_syntax_inits")
-  if version < 508
-    let did_tli_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 tliNumber	Number
-  HiLink tliString	String
-  HiLink tliComment	Comment
-  HiLink tliSpecial	SpecialChar
-  HiLink tliIdentifier Identifier
-  HiLink tliObject     Statement
-  HiLink tliField      Type
-  HiLink tliStyle      PreProc
+HiLink tliNumber	Number
+HiLink tliString	String
+HiLink tliComment	Comment
+HiLink tliSpecial	SpecialChar
+HiLink tliIdentifier Identifier
+HiLink tliObject     Statement
+HiLink tliField      Type
+HiLink tliStyle      PreProc
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "tli"