diff --git a/src/calibre/srv/tests/http.py b/src/calibre/srv/tests/http.py
index 8a3cd3b344..5c80e2824f 100644
--- a/src/calibre/srv/tests/http.py
+++ b/src/calibre/srv/tests/http.py
@@ -81,7 +81,7 @@ class TestHTTP(BaseTest):
         def handler(data):
             return data.lang_code + data._('Unknown')
 
-        with TestServer(handler, timeout=0.1) as server:
+        with TestServer(handler, timeout=0.3) as server:
             conn = server.connect()
 
             def test(al, q):