diff --git a/.circleci/config.yml b/.circleci/config.yml
index ec5dc79..5c90704 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -53,7 +53,8 @@ jobs:
           name: Deploy
           command: |
             echo $$CIRCLE_BRANCH
-            if [ $CIRCLE_BRANCH = "main" ]; then
+            if [ $CIRCLE_BRANCH = "deploy" ]; then
+              echo $FLASK_SECRET_KEY > flask_secret_key
               echo $GCLOUD_SERVICE_KEY | gcloud auth activate-service-account --key-file=-
               gcloud -q beta app deploy --no-cache --project bridgy-federated *.yaml
             fi