diff --git a/image_fupload_imagefield/image_fupload_imagefield.module b/image_fupload_imagefield/image_fupload_imagefield.module
index e531bad..c3ea273 100644
--- a/image_fupload_imagefield/image_fupload_imagefield.module
+++ b/image_fupload_imagefield/image_fupload_imagefield.module
@@ -477,7 +477,7 @@ function image_fupload_imagefield_widget_settings($op, $widget) {
  * Assign default properties to item and delegate to filefield.
  */
 function image_fupload_imagefield_widget($form, $form_state, $field, $items, $delta = 0) {
-  $element = module_invoke('imagefield', 'widget', $form, $form_state, $field, $items, $delta);
+  $element = call_user_func('imagefield_widget', &$form, &$form_state, $field, $items, $delta);
   return $element;
 }
 
diff --git a/image_fupload_imagefield/image_fupload_imagefield_widget.inc b/image_fupload_imagefield/image_fupload_imagefield_widget.inc
index 3f26df9..a32b87d 100644
--- a/image_fupload_imagefield/image_fupload_imagefield_widget.inc
+++ b/image_fupload_imagefield/image_fupload_imagefield_widget.inc
@@ -142,6 +142,6 @@ function _image_fupload_previewlist_captions($node_type, $field_name) {
 /**
  * FormAPI theme function. Theme the output of an image field.
  */
-function theme_image_fupload_imagefield_widget(&$element) {
+function theme_image_fupload_imagefield_widget($element) {
   return theme('form_element', $element, $element['#children']);
 }
\ No newline at end of file