diff --git a/runtime/syntax/asn.vim b/runtime/syntax/asn.vim
index 8b553e8..e90c7e0 100644
--- a/runtime/syntax/asn.vim
+++ b/runtime/syntax/asn.vim
@@ -48,25 +48,23 @@
 
 " Define the default highlighting.
 " Only when an item doesn't have highlighting yet
-command -nargs=+ HiLink hi def link <args>
-HiLink asnDefinition	Function
-HiLink asnBraces		Function
-HiLink asnStructure	Statement
-HiLink asnBoolValue	Boolean
-HiLink asnSpecial		Special
-HiLink asnString		String
-HiLink asnCharacter	Character
-HiLink asnSpecialCharacter	asnSpecial
-HiLink asnNumber		asnValue
-HiLink asnComment		Comment
-HiLink asnLineComment	asnComment
-HiLink asnType		Type
-HiLink asnTypeInfo		PreProc
-HiLink asnValue		Number
-HiLink asnExternal		Include
-HiLink asnTagModifier	Function
-HiLink asnFieldOption	Type
-delcommand HiLink
+hi def link asnDefinition	Function
+hi def link asnBraces		Function
+hi def link asnStructure	Statement
+hi def link asnBoolValue	Boolean
+hi def link asnSpecial		Special
+hi def link asnString		String
+hi def link asnCharacter	Character
+hi def link asnSpecialCharacter	asnSpecial
+hi def link asnNumber		asnValue
+hi def link asnComment		Comment
+hi def link asnLineComment	asnComment
+hi def link asnType		Type
+hi def link asnTypeInfo		PreProc
+hi def link asnValue		Number
+hi def link asnExternal		Include
+hi def link asnTagModifier	Function
+hi def link asnFieldOption	Type
 
 let &cpo = s:cpo_save
 unlet s:cpo_save