diff --git a/mercurial/exchange.py b/mercurial/exchange.py
--- a/mercurial/exchange.py
+++ b/mercurial/exchange.py
@@ -537,7 +537,7 @@ def pull(repo, remote, heads=None, force
     lock = pullop.repo.lock()
     try:
         _pulldiscovery(pullop)
-        if (pullop.repo.ui.configbool('server', 'bundle2', False)
+        if (pullop.repo.ui.configbool('experimental', 'bundle2-exp', False)
             and pullop.remote.capable('bundle2-exp')):
             _pullbundle2(pullop)
         if 'changegroup' in pullop.todosteps: