diff --git a/.gitignore b/.gitignore
index 8d33409d5..a2f7d63b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@ doc/_build/
 doc/locale/
 tests/.coverage
 tests/build/
+tests/test-server.lock
 utils/regression_test.js
 
 node_modules/