diff --git a/js/searchformforeignkeys.js b/js/searchformforeignkeys.js
index 356ee6cda..97b0f8f4c 100644
--- a/js/searchformforeignkeys.js
+++ b/js/searchformforeignkeys.js
@@ -260,7 +260,8 @@ function SearchFormForeignKeys(id, sTargetClass, sAttCode, oSearchWidgetElmt, sF
 				$(this).parents('tr:first').remove(); // Remove the whole line, so that, next time the dialog gets displayed it's no longer there
 			}
 		);
-		theMap["sFilter"] = $('#datatable_ResultsToAdd_'+me.id).DataTable().ajax.params().filter;
+		//fix
+		theMap["sFilter"] = $('#datatable_ResultsToAdd_'+me.id+' [name=filter]').val();
 		theMap["class"] = me.sTargetClass;
 		theMap['operation'] = 'GetFullListForeignKeysFromSelection';
 		$('#busy_'+me.iInputId).html('&nbsp;<img src="../images/indicator.gif"/>');