diff --git a/services/web/test/acceptance/src/ProjectStructureMongoLockTest.js b/services/web/test/acceptance/src/ProjectStructureMongoLockTest.js
index 20e5fc7f53..dd3909def1 100644
--- a/services/web/test/acceptance/src/ProjectStructureMongoLockTest.js
+++ b/services/web/test/acceptance/src/ProjectStructureMongoLockTest.js
@@ -32,6 +32,14 @@ const _ = require('lodash')
 
 describe('ProjectStructureMongoLock', function() {
   describe('whilst a project lock is taken', function() {
+    let oldMaxLockWaitTime
+    before(function() {
+      oldMaxLockWaitTime = LockManager.MAX_LOCK_WAIT_TIME
+    })
+    after(function() {
+      LockManager.MAX_LOCK_WAIT_TIME = oldMaxLockWaitTime
+    })
+
     beforeEach(function(done) {
       // We want to instantly fail if the lock is taken
       LockManager.MAX_LOCK_WAIT_TIME = 1