diff --git a/runtime/syntax/mupad.vim b/runtime/syntax/mupad.vim
index 7f981f0..55ea9c4 100644
--- a/runtime/syntax/mupad.vim
+++ b/runtime/syntax/mupad.vim
@@ -265,21 +265,19 @@
 " graphics  meta-documentation Attributes
 syn keyword mupadIdentifier	objectGroupsListed
 
-command -nargs=+ HiLink hi def link <args>
 
-HiLink mupadComment		Comment
-HiLink mupadString		String
-HiLink mupadOperator		Operator
-HiLink mupadSpecial		Special
-HiLink mupadStatement		Statement
-HiLink mupadUnderlined	Underlined
-HiLink mupadConditional	Conditional
-HiLink mupadRepeat		Repeat
-HiLink mupadFunction		Function
-HiLink mupadType		Type
-HiLink mupadDefine		Define
-HiLink mupadIdentifier	Identifier
+hi def link mupadComment		Comment
+hi def link mupadString		String
+hi def link mupadOperator		Operator
+hi def link mupadSpecial		Special
+hi def link mupadStatement		Statement
+hi def link mupadUnderlined	Underlined
+hi def link mupadConditional	Conditional
+hi def link mupadRepeat		Repeat
+hi def link mupadFunction		Function
+hi def link mupadType		Type
+hi def link mupadDefine		Define
+hi def link mupadIdentifier	Identifier
 
-delcommand HiLink
 
 " TODO  More comprehensive listing.