diff --git a/runtime/syntax/mgp.vim b/runtime/syntax/mgp.vim
index 76b9661..a5c6186 100644
--- a/runtime/syntax/mgp.vim
+++ b/runtime/syntax/mgp.vim
@@ -10,11 +10,8 @@
 " SPAM is _NOT_ welcome - be ready to be reported!
 
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syn clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -48,36 +45,27 @@
 
 
 " 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_mgp_syn_inits")
-  let did_mgp_syn_inits = 1
-  if version < 508
-    let did_mgp_syn_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>
 
-  HiLink mgpLineSkip	Special
+HiLink mgpLineSkip	Special
 
-  HiLink mgpHash	mgpComment
-  HiLink mgpPercent	mgpComment
-  HiLink mgpComment	Comment
+HiLink mgpHash	mgpComment
+HiLink mgpPercent	mgpComment
+HiLink mgpComment	Comment
 
-  HiLink mgpCommand	Identifier
+HiLink mgpCommand	Identifier
 
-  HiLink mgpLine	Type
+HiLink mgpLine	Type
 
-  HiLink mgpFile	String
-  HiLink mgpSize	Number
-  HiLink mgpValue	Number
+HiLink mgpFile	String
+HiLink mgpSize	Number
+HiLink mgpValue	Number
 
-  HiLink mgpPage	mgpDefine
-  HiLink mgpNoDefault	mgpDefine
-  HiLink mgpDefine	Define
+HiLink mgpPage	mgpDefine
+HiLink mgpNoDefault	mgpDefine
+HiLink mgpDefine	Define
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "mgp"