diff --git a/runtime/syntax/asm68k.vim b/runtime/syntax/asm68k.vim
index 8463e48..4f057a9 100644
--- a/runtime/syntax/asm68k.vim
+++ b/runtime/syntax/asm68k.vim
@@ -8,11 +8,8 @@
 " Feel free to contribute...
 "
 
-" 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
 
@@ -328,63 +325,55 @@
 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_asm68k_syntax_inits")
-  if version < 508
-    let did_asm68k_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>
 
-  " The default methods for highlighting.  Can be overridden later
-  " Comment Constant Error Identifier PreProc Special Statement Todo Type
-  "
-  " Constant		Boolean Character Number String
-  " Identifier		Function
-  " PreProc		Define Include Macro PreCondit
-  " Special		Debug Delimiter SpecialChar SpecialComment Tag
-  " Statement		Conditional Exception Keyword Label Operator Repeat
-  " Type		StorageClass Structure Typedef
+" The default methods for highlighting.  Can be overridden later
+" Comment Constant Error Identifier PreProc Special Statement Todo Type
+"
+" Constant		Boolean Character Number String
+" Identifier		Function
+" PreProc		Define Include Macro PreCondit
+" Special		Debug Delimiter SpecialChar SpecialComment Tag
+" Statement		Conditional Exception Keyword Label Operator Repeat
+" Type		StorageClass Structure Typedef
 
-  HiLink asm68kComment		Comment
-  HiLink asm68kTodo		Todo
+HiLink asm68kComment		Comment
+HiLink asm68kTodo		Todo
 
-  HiLink hexNumber		Number		" Constant
-  HiLink octNumber		Number		" Constant
-  HiLink binNumber		Number		" Constant
-  HiLink decNumber		Number		" Constant
-  HiLink floatNumber		Number		" Constant
-  HiLink floatExponent		Number		" Constant
-  HiLink floatE			SpecialChar	" Statement
-  "HiLink floatE		Number		" Constant
+HiLink hexNumber		Number		" Constant
+HiLink octNumber		Number		" Constant
+HiLink binNumber		Number		" Constant
+HiLink decNumber		Number		" Constant
+HiLink floatNumber		Number		" Constant
+HiLink floatExponent		Number		" Constant
+HiLink floatE			SpecialChar	" Statement
+"HiLink floatE		Number		" Constant
 
-  HiLink asm68kImmediate	SpecialChar	" Statement
-  "HiLink asm68kSymbol		Constant
+HiLink asm68kImmediate	SpecialChar	" Statement
+"HiLink asm68kSymbol		Constant
 
-  HiLink asm68kString		String		" Constant
-  HiLink asm68kCharError	Error
-  HiLink asm68kStringError	Error
+HiLink asm68kString		String		" Constant
+HiLink asm68kCharError	Error
+HiLink asm68kStringError	Error
 
-  HiLink asm68kReg		Identifier
-  HiLink asm68kOperator		Identifier
+HiLink asm68kReg		Identifier
+HiLink asm68kOperator		Identifier
 
-  HiLink asm68kInclude		Include		" PreProc
-  HiLink asm68kMacro		Macro		" PreProc
-  HiLink asm68kMacroParam	Keyword		" Statement
+HiLink asm68kInclude		Include		" PreProc
+HiLink asm68kMacro		Macro		" PreProc
+HiLink asm68kMacroParam	Keyword		" Statement
 
-  HiLink asm68kDirective	Special
-  HiLink asm68kPreCond		Special
+HiLink asm68kDirective	Special
+HiLink asm68kPreCond		Special
 
 
-  HiLink asm68kOpcode		Statement
-  HiLink asm68kCond		Conditional	" Statement
-  HiLink asm68kRepeat		Repeat		" Statement
+HiLink asm68kOpcode		Statement
+HiLink asm68kCond		Conditional	" Statement
+HiLink asm68kRepeat		Repeat		" Statement
 
-  HiLink asm68kLabel		Type
-  delcommand HiLink
-endif
+HiLink asm68kLabel		Type
+delcommand HiLink
 
 let b:current_syntax = "asm68k"