diff --git a/core/modules/file/file.module b/core/modules/file/file.module
index 69fcbf3..5d9f620 100644
--- a/core/modules/file/file.module
+++ b/core/modules/file/file.module
@@ -1286,9 +1286,9 @@ function theme_file_icon($variables) {
   $file = $variables['file'];
   $icon_directory = $variables['icon_directory'];
 
-  $mime = check_plain($file->filemime);
+  $title = !empty($file->filename) ? check_plain($file->filename) : check_plain($file->filemime);
   $icon_url = file_icon_url($file, $icon_directory);
-  return '<img class="file-icon" alt="" title="' . $mime . '" src="' . $icon_url . '" />';
+  return '<img class="file-icon" alt="" title="' . $title . '" src="' . $icon_url . '" />';
 }
 
 /**