diff --git a/libraries/properties/options/OptionsPropertyGroup.class.php b/libraries/properties/options/OptionsPropertyGroup.class.php
index 3a4a0c9f91..ebff9b321b 100644
--- a/libraries/properties/options/OptionsPropertyGroup.class.php
+++ b/libraries/properties/options/OptionsPropertyGroup.class.php
@@ -59,9 +59,11 @@ abstract class OptionsPropertyGroup extends OptionsPropertyItem
         $this->_properties = array_udiff(
             $this->getProperties(),
             array($property),
-            function ($a, $b) {
-                return ($a === $b ) ? 0 : 1;
-            }
+            // for PHP 5.2 compability 
+            create_function(
+                '$a, $b',
+                'return ($a === $b ) ? 0 : 1'
+            )
         );
     }
 
@@ -99,4 +101,4 @@ abstract class OptionsPropertyGroup extends OptionsPropertyItem
         return count($this->_properties);
     }
 }
-?>
\ No newline at end of file
+?>