diff --git ife/ife.module ife/ife.module
index 0b0d2b3..0d220fe 100644
--- ife/ife.module
+++ ife/ife.module
@@ -224,6 +224,9 @@ function ife_form_validator($form, &$form_state) {
  * Function to recursivly go through a form and alter all valid field type elements
  */
 function ife_filter_form(&$form, $display) {
+  if (!is_array($form)) {
+    return;
+  }
   //get all possible children
   $keys = element_children($form);
   $field_types = ife_field_types();