diff --git a/site-cookbooks/kosmos-mastodon/recipes/default.rb b/site-cookbooks/kosmos-mastodon/recipes/default.rb
index 908fdd6..9e9999e 100644
--- a/site-cookbooks/kosmos-mastodon/recipes/default.rb
+++ b/site-cookbooks/kosmos-mastodon/recipes/default.rb
@@ -174,7 +174,7 @@ application mastodon_path do
   end
 
   execute "yarn install" do
-    environment "HOME" => mastodon_path
+    environment "HOME" => mastodon_path, "NODE_ENV" => "production"
     user mastodon_user
     cwd mastodon_path
     command "yarn install --pure-lockfile"