diff --git a/runtime/syntax/fgl.vim b/runtime/syntax/fgl.vim
index 1b2fe19..e45e31c 100644
--- a/runtime/syntax/fgl.vim
+++ b/runtime/syntax/fgl.vim
@@ -7,11 +7,8 @@
 " - Conditionally allow case insensitive keywords (Julian Bridle)
 "
 
-" 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
 
@@ -119,28 +116,20 @@
 syn sync ccomment fglComment
 
 " 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_fgl_syntax_inits")
-  if version < 508
-    let did_fgl_syntax_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 fglComment	Comment
-  "HiLink fglKeyword	fglSpecial
-  HiLink fglKeyword	fglStatement
-  HiLink fglNumber	Number
-  HiLink fglOperator	fglStatement
-  HiLink fglSpecial	Special
-  HiLink fglStatement	Statement
-  HiLink fglString	String
-  HiLink fglType	Type
+HiLink fglComment	Comment
+"HiLink fglKeyword	fglSpecial
+HiLink fglKeyword	fglStatement
+HiLink fglNumber	Number
+HiLink fglOperator	fglStatement
+HiLink fglSpecial	Special
+HiLink fglStatement	Statement
+HiLink fglString	String
+HiLink fglType	Type
 
-  delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "fgl"