diff --git a/server/tests/api/check-params/users.js b/server/tests/api/check-params/users.js
index 0aa9a4524..0ba5e77c3 100644
--- a/server/tests/api/check-params/users.js
+++ b/server/tests/api/check-params/users.js
@@ -519,6 +519,7 @@ describe('Test users API validators', function () {
 
   after(function (done) {
     process.kill(-server.app.pid)
+    process.kill(-serverWithRegistrationDisabled.app.pid)
 
     // Keep the logs if the test failed
     if (this.ok) {