diff --git a/config/unicorn.rb b/config/unicorn.rb
index a2d0b98..f9d6380 100644
--- a/config/unicorn.rb
+++ b/config/unicorn.rb
@@ -1,10 +1,16 @@
 # http://michaelvanrooijen.com/articles/2011/06/01-more-concurrency-on-a-single-heroku-dyno-with-the-new-celadon-cedar-stack/
 
-worker_processes ENV['ERRBIT_UNICORN_WORKER_PROCESSES']  # amount of unicorn workers to spin up
+worker_processes_value = 1
+worker_processes_value  = ENV["ERRBIT_UNICORN_WORKER_PROCESSES"].to_i unless ENV["ERRBIT_UNICORN_WORKER_PROCESSES"] 
+
+
+worker_processes worker_processes_value  # amount of unicorn workers to spin up
+
 timeout 30         # restarts workers that hang for 30 seconds
+
 preload_app true
 
-listen "${ENV['ERRBIT_UNICORN_BIND_ADDRESS'}:${ENV['ERRBIT_UNICORN_PORT']}"
+listen "#{ENV['ERRBIT_UNICORN_BIND_ADDRESS']}:#{ENV['ERRBIT_UNICORN_PORT']}"
 
 pid ENV['ERRBIT_UNICORN_PID']
 
--
libgit2 0.21.2