Index: modules/field_ui/field_ui.admin.inc
===================================================================
RCS file: /cvs/drupal/drupal/modules/field_ui/field_ui.admin.inc,v
retrieving revision 1.43
diff -u -p -r1.43 field_ui.admin.inc
--- modules/field_ui/field_ui.admin.inc	15 Feb 2010 22:18:35 -0000	1.43
+++ modules/field_ui/field_ui.admin.inc	19 Feb 2010 01:19:55 -0000
@@ -781,10 +781,10 @@ function field_ui_existing_field_options
   $options = array();
   $field_types = field_info_field_types();
 
-  foreach (field_info_instances() as $existing_obj_type => $bundles) {
+  foreach (field_info_instances() as $existing_entity_type => $bundles) {
     foreach ($bundles as $existing_bundle => $instances) {
       // No need to look in the current bundle.
-      if (!($existing_bundle == $bundle && $existing_obj_type == $entity_type)) {
+      if (!($existing_bundle == $bundle && $existing_entity_type == $entity_type)) {
         foreach ($instances as $instance) {
           $field = field_info_field($instance['field_name']);
           // Don't show