diff --git a/media_gallery.fields.inc b/media_gallery.fields.inc
index f172915..9aeb9c1 100644
--- a/media_gallery.fields.inc
+++ b/media_gallery.fields.inc
@@ -89,6 +89,12 @@ function media_gallery_field_formatter_view($entity_type, $entity, $field, $inst
   // Prepare the referenced file entities for viewing.
   $files = array();
   foreach ($items as $delta => $item) {
+    // Don't try to display files which no longer exist.
+    if (!isset($item['file'])) {
+      unset($items[$delta]);
+      continue;
+    }
+
     $file = $item['file'];
 
     // Pass along formatter reference field values from the gallery to the file.