diff --git a/language/references.xml b/language/references.xml
index 8ecd2b16aa..ec6b2b17d9 100644
--- a/language/references.xml
+++ b/language/references.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.44 $ -->
+<!-- $Revision: 1.45 $ -->
  <chapter id="language.references">
   <title>References Explained</title>
 
@@ -307,7 +307,7 @@ function bar() // Note the missing &
     $a = 5;
     return $a;
 }
-foo(bar()); // Produces fatal error since PHP 5.1.0
+foo(bar()); // Produces fatal error since PHP 5.0.5
 
 foo($a = 5); // Expression, not variable
 foo(5); // Produces fatal error