diff --git a/video_embed_field.field.inc b/video_embed_field.field.inc
index cd42fb2..29358f5 100644
--- a/video_embed_field.field.inc
+++ b/video_embed_field.field.inc
@@ -439,9 +439,11 @@ function video_embed_field_field_formatter_view($entity_type, $entity, $field, $
         '#markup' => $item['description'],
         '#suffix' => '</div>',
       );
+      $alt = $item['description'];
     }
     else {
       $description = array();
+      $alt = '';
     }
 
     // Render the field.
@@ -478,7 +480,7 @@ function video_embed_field_field_formatter_view($entity_type, $entity, $field, $
 
         $element[$delta] = array(
           '#theme' => 'image_formatter',
-          '#item' => array('uri' => $item['thumbnail_path']),
+          '#item' => array('uri' => $item['thumbnail_path'], 'alt' => $alt),
           '#image_style' => $display['settings']['image_style'],
           '#path' => isset($path) ? $path : '',
         );