diff --git a/qutebrowser/config/redirects.py b/qutebrowser/config/redirects.py
index 218db30..82ec723 100644
--- a/qutebrowser/config/redirects.py
+++ b/qutebrowser/config/redirects.py
@@ -35,7 +35,7 @@ redirects = {
         "farside": ["invidious"],
     },
     "stackoverflow": {
-        "source": ["stackoverflow.com"],
+        "source": ["stackoverflow.com", "askubuntu.com"],
         "farside": ["anonymousoverflow"],
     },
     "lbry": {