diff --git a/gallery_dl/extractor/common.py b/gallery_dl/extractor/common.py
index cd7f01ea..e6c0968c 100644
--- a/gallery_dl/extractor/common.py
+++ b/gallery_dl/extractor/common.py
@@ -79,6 +79,7 @@ class Extractor():
         session = self.session if session is None else session
         kwargs.setdefault("timeout", self._timeout)
         kwargs.setdefault("verify", self._verify)
+        response = None
 
         while True:
             try: