diff --git a/media_youtube.module b/media_youtube.module
index 2ada98d..b86e5a6 100644
--- a/media_youtube.module
+++ b/media_youtube.module
@@ -96,6 +96,13 @@ function media_youtube_ctools_plugin_api($owner, $api) {
 }
 
 /**
+ * Implements hook_file_mimetype_mapping_alter().
+ */
+function media_youtube_file_mimetype_mapping_alter(&$mapping) {
+  $mapping['mimetypes'][] = 'video/youtube';
+}
+
+/**
  * YouTube search tab for the Media browser.
  */