diff --git a/gulliver/methods/genericAjax.php b/gulliver/methods/genericAjax.php
index 919db5b73..be58473b0 100755
--- a/gulliver/methods/genericAjax.php
+++ b/gulliver/methods/genericAjax.php
@@ -14,6 +14,9 @@ if( isset($request) ){
       }
 
       if (is_array($_SESSION[$_POST["formID"]][$_POST["gridname"]])) {
+          if (!is_array($_SESSION[$_POST["formID"]][$_POST["gridname"]])) {
+              $_SESSION[$_POST["formID"]][$_POST["gridname"]] = (array)$_SESSION[$_POST["formID"]][$_POST["gridname"]];
+          }
           ksort($_SESSION[$_POST["formID"]][$_POST["gridname"]]);
           $oFields = array();
           $initialKey = 1;