diff --git a/services/track-changes/scripts/flush_all.js b/services/track-changes/scripts/flush_all.js
index 4fce564d61..d2280666e6 100644
--- a/services/track-changes/scripts/flush_all.js
+++ b/services/track-changes/scripts/flush_all.js
@@ -1,6 +1,8 @@
 const UpdatesManager = require('../app/js/UpdatesManager')
+const { waitForDb } = require('../app/js/mongodb')
 
 async function main() {
+  await waitForDb()
   return new Promise((resolve, reject) => {
     const limit = -1
     console.log('Flushing all updates')