diff --git includes/MediaYouTubeStreamWrapper.inc includes/MediaYouTubeStreamWrapper.inc
index 0e82a74..654a267 100644
--- includes/MediaYouTubeStreamWrapper.inc
+++ includes/MediaYouTubeStreamWrapper.inc
@@ -37,6 +37,8 @@ class MediaYouTubeStreamWrapper extends MediaReadOnlyStreamWrapper {
   }
 
   function getOriginalThumbnailPath() {
+    global $is_https;
+    $protocol = ($is_https) ? 'https://' : 'http://';
     $parts = $this->get_parameters();
     $v = check_plain($parts['v']);
     //  Attempt to pull a HD thumbnail from YouTube. If it exists pass it on
@@ -47,10 +49,10 @@ class MediaYouTubeStreamWrapper extends MediaReadOnlyStreamWrapper {
       file_unmanaged_save_data($response->data, $thumbname, $replace = FILE_EXISTS_REPLACE);
     }
     if ((filesize($thumbname)) == 0) {
-      return 'http://img.youtube.com/vi/' . $v . '/0.jpg';
+      return $protocol . 'img.youtube.com/vi/' . $v . '/0.jpg';
     }
     else {
-      return 'http://img.youtube.com/vi/' . $v . '/maxresdefault.jpg';
+      return $protocol . 'img.youtube.com/vi/' . $v . '/maxresdefault.jpg';
     }
   }