diff --git a/runtime/syntax/nasm.vim b/runtime/syntax/nasm.vim
index 0f81ceb..d648508 100644
--- a/runtime/syntax/nasm.vim
+++ b/runtime/syntax/nasm.vim
@@ -422,87 +422,85 @@
 
 " Define the default highlighting.
 " Only when an item doesn't have highlighting yet
-command -nargs=+ HiLink hi def link <args>
 
 " Sub Links:
-HiLink nasmInMacDirective	nasmDirective
-HiLink nasmInMacLabel		nasmLocalLabel
-HiLink nasmInMacLblWarn	nasmLabelWarn
-HiLink nasmInMacMacro		nasmMacro
-HiLink nasmInMacParam		nasmMacro
-HiLink nasmInMacParamNum	nasmDecNumber
-HiLink nasmInMacPreCondit	nasmPreCondit
-HiLink nasmInMacPreProc	nasmPreProc
-HiLink nasmInPreCondit	nasmPreCondit
-HiLink nasmInStructure	nasmStructure
-HiLink nasmStructureLabel	nasmStructure
+hi def link nasmInMacDirective	nasmDirective
+hi def link nasmInMacLabel		nasmLocalLabel
+hi def link nasmInMacLblWarn	nasmLabelWarn
+hi def link nasmInMacMacro		nasmMacro
+hi def link nasmInMacParam		nasmMacro
+hi def link nasmInMacParamNum	nasmDecNumber
+hi def link nasmInMacPreCondit	nasmPreCondit
+hi def link nasmInMacPreProc	nasmPreProc
+hi def link nasmInPreCondit	nasmPreCondit
+hi def link nasmInStructure	nasmStructure
+hi def link nasmStructureLabel	nasmStructure
 
 " Comment Group:
-HiLink nasmComment		Comment
-HiLink nasmSpecialComment	SpecialComment
-HiLink nasmInCommentTodo	Todo
+hi def link nasmComment		Comment
+hi def link nasmSpecialComment	SpecialComment
+hi def link nasmInCommentTodo	Todo
 
 " Constant Group:
-HiLink nasmString		String
-HiLink nasmStringError	Error
-HiLink nasmBinNumber		Number
-HiLink nasmOctNumber		Number
-HiLink nasmDecNumber		Number
-HiLink nasmHexNumber		Number
-HiLink nasmFltNumber		Float
-HiLink nasmNumberError	Error
+hi def link nasmString		String
+hi def link nasmStringError	Error
+hi def link nasmBinNumber		Number
+hi def link nasmOctNumber		Number
+hi def link nasmDecNumber		Number
+hi def link nasmHexNumber		Number
+hi def link nasmFltNumber		Float
+hi def link nasmNumberError	Error
 
 " Identifier Group:
-HiLink nasmLabel		Identifier
-HiLink nasmLocalLabel		Identifier
-HiLink nasmSpecialLabel	Special
-HiLink nasmLabelError		Error
-HiLink nasmLabelWarn		Todo
+hi def link nasmLabel		Identifier
+hi def link nasmLocalLabel		Identifier
+hi def link nasmSpecialLabel	Special
+hi def link nasmLabelError		Error
+hi def link nasmLabelWarn		Todo
 
 " PreProc Group:
-HiLink nasmPreProc		PreProc
-HiLink nasmDefine		Define
-HiLink nasmInclude		Include
-HiLink nasmMacro		Macro
-HiLink nasmPreCondit		PreCondit
-HiLink nasmPreProcError	Error
-HiLink nasmPreProcWarn	Todo
+hi def link nasmPreProc		PreProc
+hi def link nasmDefine		Define
+hi def link nasmInclude		Include
+hi def link nasmMacro		Macro
+hi def link nasmPreCondit		PreCondit
+hi def link nasmPreProcError	Error
+hi def link nasmPreProcWarn	Todo
 
 " Type Group:
-HiLink nasmType		Type
-HiLink nasmStorage		StorageClass
-HiLink nasmStructure		Structure
-HiLink nasmTypeError		Error
+hi def link nasmType		Type
+hi def link nasmStorage		StorageClass
+hi def link nasmStructure		Structure
+hi def link nasmTypeError		Error
 
 " Directive Group:
-HiLink nasmConstant		Constant
-HiLink nasmInstrModifier	Operator
-HiLink nasmRepeat		Repeat
-HiLink nasmDirective		Keyword
-HiLink nasmStdDirective	Operator
-HiLink nasmFmtDirective	Keyword
+hi def link nasmConstant		Constant
+hi def link nasmInstrModifier	Operator
+hi def link nasmRepeat		Repeat
+hi def link nasmDirective		Keyword
+hi def link nasmStdDirective	Operator
+hi def link nasmFmtDirective	Keyword
 
 " Register Group:
-HiLink nasmCtrlRegister	Special
-HiLink nasmDebugRegister	Debug
-HiLink nasmTestRegister	Special
-HiLink nasmRegisterError	Error
-HiLink nasmMemRefError	Error
+hi def link nasmCtrlRegister	Special
+hi def link nasmDebugRegister	Debug
+hi def link nasmTestRegister	Special
+hi def link nasmRegisterError	Error
+hi def link nasmMemRefError	Error
 
 " Instruction Group:
-HiLink nasmStdInstruction	Statement
-HiLink nasmSysInstruction	Statement
-HiLink nasmDbgInstruction	Debug
-HiLink nasmFpuInstruction	Statement
-HiLink nasmMmxInstruction	Statement
-HiLink nasmSseInstruction	Statement
-HiLink nasmNowInstruction	Statement
-HiLink nasmAmdInstruction	Special
-HiLink nasmCrxInstruction	Special
-HiLink nasmUndInstruction	Todo
-HiLink nasmInstructnError	Error
+hi def link nasmStdInstruction	Statement
+hi def link nasmSysInstruction	Statement
+hi def link nasmDbgInstruction	Debug
+hi def link nasmFpuInstruction	Statement
+hi def link nasmMmxInstruction	Statement
+hi def link nasmSseInstruction	Statement
+hi def link nasmNowInstruction	Statement
+hi def link nasmAmdInstruction	Special
+hi def link nasmCrxInstruction	Special
+hi def link nasmUndInstruction	Todo
+hi def link nasmInstructnError	Error
 
-delcommand HiLink
 
 let b:current_syntax = "nasm"