diff --git a/bdfr/site_downloaders/download_factory.py b/bdfr/site_downloaders/download_factory.py
index df2a0ea..6237ecd 100644
--- a/bdfr/site_downloaders/download_factory.py
+++ b/bdfr/site_downloaders/download_factory.py
@@ -28,7 +28,7 @@ class DownloadFactory:
         sanitised_url = DownloadFactory.sanitise_url(url)
         if re.match(r"(i\.|m\.)?imgur", sanitised_url):
             return Imgur
-        elif re.match(r"(i\.)?(redgifs|gifdeliverynetwork)", sanitised_url):
+        elif re.match(r"(i\.|thumbs\d\.)?(redgifs|gifdeliverynetwork)", sanitised_url):
             return Redgifs
         elif re.match(r".*/.*\.[a-zA-Z34]{3,4}(\?[\w;&=]*)?$", sanitised_url) and not DownloadFactory.is_web_resource(
             sanitised_url
diff --git a/tests/site_downloaders/test_download_factory.py b/tests/site_downloaders/test_download_factory.py
index bb09471..062635c 100644
--- a/tests/site_downloaders/test_download_factory.py
+++ b/tests/site_downloaders/test_download_factory.py
@@ -40,6 +40,7 @@ from bdfr.site_downloaders.youtube import Youtube
         ("https://youtube.com/watch?v=Gv8Wz74FjVA", Youtube),
         ("https://redgifs.com/watch/courageousimpeccablecanvasback", Redgifs),
         ("https://www.gifdeliverynetwork.com/repulsivefinishedandalusianhorse", Redgifs),
+        ("https://thumbs4.redgifs.com/DismalIgnorantDrongo-mobile.mp4", Redgifs),
         ("https://youtu.be/DevfjHOhuFc", Youtube),
         ("https://m.youtube.com/watch?v=kr-FeojxzUM", Youtube),
         ("https://dynasty-scans.com/system/images_images/000/017/819/original/80215103_p0.png?1612232781", Direct),