diff --git a/config/deploy.rb b/config/deploy.rb
index 5c1c73ff3..f09c199f9 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -3,7 +3,7 @@ lock '3.4.0'
 
 def deploysecret(key)
   @deploy_secrets_yml ||= YAML.load_file('config/deploy-secrets.yml')[fetch(:stage).to_s]
-  @deploy_secrets_yml[key.to_s]
+  @deploy_secrets_yml.fetch(key.to_s, 'undefined')
 end