diff --git a/README.md b/README.md
index 5d4c794..042691c 100644
--- a/README.md
+++ b/README.md
@@ -137,7 +137,7 @@ end
 namespace :deploy do
   def deploy(env)
     puts "Deploying to #{env}"
-    exec "TARGET=#{env} bundle exec middleman deploy"
+    system "TARGET=#{env} bundle exec middleman deploy"
   end
 
   task :staging do