diff --git a/lib/tasks/extensions.rake b/lib/tasks/extensions.rake
index 776c81e3..6efd9026 100644
--- a/lib/tasks/extensions.rake
+++ b/lib/tasks/extensions.rake
@@ -3,6 +3,7 @@ namespace :assets do
   task :js_compile do
     system 'npm install'
     system 'npm run build'
+    system 'bin/build-apidocs.sh' if ENV['MAILER_DEFAULT_URL'] == 'metamaps.herokuapp.com'
   end
 end