diff --git a/runtime/syntax/nastran.vim b/runtime/syntax/nastran.vim
index 34ad1bf..239fd6e 100644
--- a/runtime/syntax/nastran.vim
+++ b/runtime/syntax/nastran.vim
@@ -153,30 +153,28 @@
 syn keyword nastranUtilCard ECHOON ECHOOFF INCLUDE PARAM
 
 
-command -nargs=+ HiLink hi link <args>
 " The default methods for highlighting.  Can be overridden later
-HiLink nastranDmapexecmod	     Statement
-HiLink nastranDmapType	     Type
-HiLink nastranDmapPreCondit	     Error
-HiLink nastranDmapUtilmod	     PreProc
-HiLink nastranDmapMatmod	     nastranDmapUtilmod
-HiLink nastranDmapString	     String
-HiLink nastranDmapNumber	     Constant
-HiLink nastranDmapFloat	     nastranDmapNumber
-HiLink nastranDmapInitTab	     nastranDmapNumber
-HiLink nastranDmapTab		     nastranDmapNumber
-HiLink nastranDmapLogical	     nastranDmapExecmod
-HiLink nastranDmapImplicit	     Identifier
-HiLink nastranDmapComment	     Comment
-HiLink nastranDmapRepeat	     nastranDmapexecmod
-HiLink nastranNastranCard	     nastranDmapPreCondit
-HiLink nastranECSCard		     nastranDmapUtilmod
-HiLink nastranFMSCard		     nastranNastranCard
-HiLink nastranCC		     nastranDmapexecmod
-HiLink nastranDelimiter	     Special
-HiLink nastranBulkData	     nastranDmapType
-HiLink nastranUtilCard	     nastranDmapexecmod
-delcommand HiLink
+hi def link nastranDmapexecmod	     Statement
+hi def link nastranDmapType	     Type
+hi def link nastranDmapPreCondit	     Error
+hi def link nastranDmapUtilmod	     PreProc
+hi def link nastranDmapMatmod	     nastranDmapUtilmod
+hi def link nastranDmapString	     String
+hi def link nastranDmapNumber	     Constant
+hi def link nastranDmapFloat	     nastranDmapNumber
+hi def link nastranDmapInitTab	     nastranDmapNumber
+hi def link nastranDmapTab		     nastranDmapNumber
+hi def link nastranDmapLogical	     nastranDmapExecmod
+hi def link nastranDmapImplicit	     Identifier
+hi def link nastranDmapComment	     Comment
+hi def link nastranDmapRepeat	     nastranDmapexecmod
+hi def link nastranNastranCard	     nastranDmapPreCondit
+hi def link nastranECSCard		     nastranDmapUtilmod
+hi def link nastranFMSCard		     nastranNastranCard
+hi def link nastranCC		     nastranDmapexecmod
+hi def link nastranDelimiter	     Special
+hi def link nastranBulkData	     nastranDmapType
+hi def link nastranUtilCard	     nastranDmapexecmod
 
 let b:current_syntax = "nastran"