diff --git a/cruise_config.rb b/cruise_config.rb
index 922a03a0f..a52297ead 100644
--- a/cruise_config.rb
+++ b/cruise_config.rb
@@ -1,5 +1,5 @@
 require 'fileutils'
 
 Project.configure do |project|
-  project.build_command = 'source /usr/local/rvm/scripts/rvm && rvm use ruby-1.8.7-p249@diaspora && rm Gemfile.lock && gem update --system && ruby lib/cruise/build.rb'
+  project.build_command = 'source /usr/local/rvm/scripts/rvm && rvm use ruby-1.8.7-p249@diaspora && rm -f Gemfile.lock && gem update --system && ruby lib/cruise/build.rb'
 end