diff --git a/editablefields.module b/editablefields.module
index ddfe664..f23ddb6 100755
--- a/editablefields.module
+++ b/editablefields.module
@@ -198,7 +198,12 @@ function editablefields_fallback_formatter($entity_type, $entity, $field, $insta
   $display['type'] = $display['settings']['fallback_format'];
   $display['settings'] = $display['settings']['fallback_settings'];
   $formatter_type = field_info_formatter_types($display['type']);
-  $display['module'] = $formatter_type['module'];
+  if (isset($formatter_type['module'])) {
+    $display['module'] = $formatter_type['module'];
+  }
+  else {
+    return;
+  }
 
   // Clone the entity to avoid messing with it.
   $cloned_entity = clone $entity;