diff --git a/modules/upload.module b/modules/upload.module
index 50b249ede4d..2bc04249750 100644
--- a/modules/upload.module
+++ b/modules/upload.module
@@ -244,7 +244,7 @@ function upload_form_alter($form_id, &$form) {
         '#weight' => 30,
       );
       $form['attachments'] += _upload_form($node);
-      $form['#attributes'] = array('enctype' => 'multipart/form-data');
+      $form['#attributes']['enctype'] = 'multipart/form-data';
     }
   }
 }
diff --git a/modules/upload/upload.module b/modules/upload/upload.module
index 50b249ede4d..2bc04249750 100644
--- a/modules/upload/upload.module
+++ b/modules/upload/upload.module
@@ -244,7 +244,7 @@ function upload_form_alter($form_id, &$form) {
         '#weight' => 30,
       );
       $form['attachments'] += _upload_form($node);
-      $form['#attributes'] = array('enctype' => 'multipart/form-data');
+      $form['#attributes']['enctype'] = 'multipart/form-data';
     }
   }
 }