diff --git a/runtime/syntax/gdb.vim b/runtime/syntax/gdb.vim
index 64e89cc..677f948 100644
--- a/runtime/syntax/gdb.vim
+++ b/runtime/syntax/gdb.vim
@@ -4,11 +4,8 @@
 " URL:		http://www.fleiner.com/vim/syntax/gdb.vim
 " Last Change:	2012 Oct 05
 
-" For version 5.x: Clear all syntax items
-" For version 6.x: Quit when a syntax file was already loaded
-if version < 600
-  syntax clear
-elseif exists("b:current_syntax")
+" quit when a syntax file was already loaded
+if exists("b:current_syntax")
   finish
 endif
 
@@ -87,27 +84,19 @@
 exec "syn sync ccomment gdbComment minlines=" . gdb_minlines
 
 " 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_gdb_syn_inits")
-  if version < 508
-    let did_gdb_syn_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-  HiLink gdbFuncDef	Function
-  HiLink gdbComment	Comment
-  HiLink gdbStatement	Statement
-  HiLink gdbString	String
-  HiLink gdbCharacter	Character
-  HiLink gdbVariable	Identifier
-  HiLink gdbSet		Constant
-  HiLink gdbInfo	Type
-  HiLink gdbDocument	Special
-  HiLink gdbNumber	Number
-  delcommand HiLink
-endif
+" Only when an item doesn't have highlighting yet
+command -nargs=+ HiLink hi def link <args>
+HiLink gdbFuncDef	Function
+HiLink gdbComment	Comment
+HiLink gdbStatement	Statement
+HiLink gdbString	String
+HiLink gdbCharacter	Character
+HiLink gdbVariable	Identifier
+HiLink gdbSet		Constant
+HiLink gdbInfo	Type
+HiLink gdbDocument	Special
+HiLink gdbNumber	Number
+delcommand HiLink
 
 let b:current_syntax = "gdb"