diff -r 9db77d46de79 -r 24ee91ba9aa8 mercurial/wireprotov1server.py
--- a/mercurial/wireprotov1server.py	Mon Jan 06 14:15:40 2025 -0500
+++ b/mercurial/wireprotov1server.py	Sun Jan 05 21:03:17 2025 -0500
@@ -488,7 +488,7 @@
         repo.ui.debug(b'sending pullbundle "%s"\n' % path)
         try:
             return repo.vfs.open(path)
-        except IOError:
+        except OSError:
             repo.ui.debug(b'pullbundle "%s" not accessible\n' % path)
             continue
     return None