diff --git a/config/deploy.rb b/config/deploy.rb
index 3eabd7d..029bbff 100644
--- a/config/deploy.rb
+++ b/config/deploy.rb
@@ -39,7 +39,7 @@
 
 # capistrano-docker specific
 set :docker_command, "docker"
-set :docker_copy_data, %w{.env}
+set :docker_copy_data, %w{.env .my.cnf}
 
 set :docker_compose, true
 set :docker_compose_path, "docker-compose.yml"