diff --git a/workflow/engine/methods/reportTables/reportTables_Ajax.php b/workflow/engine/methods/reportTables/reportTables_Ajax.php
index 79d5df71f..fb09bff91 100644
--- a/workflow/engine/methods/reportTables/reportTables_Ajax.php
+++ b/workflow/engine/methods/reportTables/reportTables_Ajax.php
@@ -346,7 +346,9 @@ function to_camel_case ($str, $capitalise_first_char = true)
     if ($capitalise_first_char) {
         $str[0] = strtoupper( $str[0] );
     }
-    $func = create_function( '$c', 'return strtoupper($c[1]);' );
+    $func = function ($c) {
+        return strtoupper($c[1]);
+    };
     return preg_replace_callback( '/_([a-z])/', $func, $str );
 }