diff --git a/tests/test-clonebundles.t b/tests/test-clonebundles.t
--- a/tests/test-clonebundles.t
+++ b/tests/test-clonebundles.t
@@ -61,7 +61,7 @@ Server is not running aborts
   $ echo "http://localhost:$HGPORT1/bundle.hg" > server/.hg/clonebundles.manifest
   $ hg clone http://localhost:$HGPORT server-not-runner
   applying clone bundle from http://localhost:$HGPORT1/bundle.hg
-  error fetching bundle: (.* refused.*|Protocol not supported) (re)
+  error fetching bundle: (.* refused.*|Protocol not supported|Cannot assign requested address) (re)
   abort: error applying bundle
   (if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")
   [255]
diff --git a/tests/test-http-proxy.t b/tests/test-http-proxy.t
--- a/tests/test-http-proxy.t
+++ b/tests/test-http-proxy.t
@@ -87,7 +87,7 @@ bad host:port for proxy ("Protocol not s
 misconfigured hosts)
 
   $ http_proxy=localhost:$HGPORT2 hg clone --config http_proxy.always=True http://localhost:$HGPORT/ f
-  abort: error: (Connection refused|Protocol not supported|.* actively refused it) (re)
+  abort: error: (Connection refused|Protocol not supported|.* actively refused it|Cannot assign requested address) (re)
   [255]
 
 do not use the proxy if it is in the no list