diff --git a/runtime/syntax/scilab.vim b/runtime/syntax/scilab.vim
index 1bfc003..bee4007 100644
--- a/runtime/syntax/scilab.vim
+++ b/runtime/syntax/scilab.vim
@@ -9,11 +9,8 @@
 "
 
 
-" 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
 
@@ -66,49 +63,41 @@
 
 
 " 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_scilab_syntax_inits")
-	if version < 508
-		let did_scilab_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	scilabStatement				Statement
-	HiLink	scilabFunction				Keyword
-	HiLink	scilabPredicate				Keyword
-	HiLink	scilabKeyword				Keyword
-	HiLink	scilabDebug					Debug
-	HiLink	scilabRepeat				Repeat
-	HiLink	scilabConditional			Conditional
-	HiLink	scilabMultiplex				Conditional
+HiLink	scilabStatement				Statement
+HiLink	scilabFunction				Keyword
+HiLink	scilabPredicate				Keyword
+HiLink	scilabKeyword				Keyword
+HiLink	scilabDebug					Debug
+HiLink	scilabRepeat				Repeat
+HiLink	scilabConditional			Conditional
+HiLink	scilabMultiplex				Conditional
 
-	HiLink	scilabConstant				Constant
-	HiLink	scilabBoolean				Boolean
+HiLink	scilabConstant				Constant
+HiLink	scilabBoolean				Boolean
 
-	HiLink	scilabDelimiter				Delimiter
-	HiLink	scilabMlistAccess			Delimiter
-	HiLink	scilabComparison			Operator
-	HiLink	scilabLogical				Operator
-	HiLink	scilabAssignment			Operator
-	HiLink	scilabArithmetic			Operator
-	HiLink	scilabRange					Operator
-	HiLink	scilabLineContinuation		Underlined
-	HiLink	scilabTransposition			Operator
+HiLink	scilabDelimiter				Delimiter
+HiLink	scilabMlistAccess			Delimiter
+HiLink	scilabComparison			Operator
+HiLink	scilabLogical				Operator
+HiLink	scilabAssignment			Operator
+HiLink	scilabArithmetic			Operator
+HiLink	scilabRange					Operator
+HiLink	scilabLineContinuation		Underlined
+HiLink	scilabTransposition			Operator
 
-	HiLink	scilabTodo					Todo
-	HiLink	scilabComment				Comment
+HiLink	scilabTodo					Todo
+HiLink	scilabComment				Comment
 
-	HiLink	scilabNumber				Number
-	HiLink	scilabString				String
+HiLink	scilabNumber				Number
+HiLink	scilabString				String
 
-	HiLink	scilabIdentifier			Identifier
-	HiLink	scilabOverload				Special
+HiLink	scilabIdentifier			Identifier
+HiLink	scilabOverload				Special
 
-	delcommand HiLink
-endif
+delcommand HiLink
 
 let b:current_syntax = "scilab"