diff --git a/gallery_dl/extractor/bunkr.py b/gallery_dl/extractor/bunkr.py
index 8283fbc4..cc2279e5 100644
--- a/gallery_dl/extractor/bunkr.py
+++ b/gallery_dl/extractor/bunkr.py
@@ -75,7 +75,7 @@ class BunkrAlbumExtractor(LolisafeAlbumExtractor):
         headers = {"Referer": root.replace("://", "://stream.", 1) + "/"}
         for file in files:
             if file["file"].endswith(
-                    (".mp4", ".m4v", ".mov", ".webm", ".zip", ".rar", ".7z")):
+                    (".mp4", ".m4v", ".mov", ".webm", ".mkv", ".zip", ".rar", ".7z")):
                 file["_http_headers"] = headers
                 file["file"] = file["file"].replace(
                     "://cdn", "://media-files", 1)