diff --git a/tests/test_server_stop.py b/tests/test_server_stop.py
index 2832b6c9..4dd479be 100644
--- a/tests/test_server_stop.py
+++ b/tests/test_server_stop.py
@@ -1,9 +1,13 @@
 import socket
 
 import viser
+import viser._client_autobuild
 
 
 def test_server_port_is_freed():
+    # Mock the client autobuild to avoid building the client.
+    viser._client_autobuild.ensure_client_is_built = lambda: None
+
     server = viser.ViserServer()
     original_port = server.get_port()