diff --git a/script/build b/script/build
index 58727416646d8f6d02a8303a718b18f4981f8941..c3fb95e9dfb5bb2d5deea09ef4ec68dbe82f6f0f 100755
--- a/script/build
+++ b/script/build
@@ -1,2 +1,2 @@
 #!/usr/bin/env ruby
-system('bundle exec rake')
+system('BUNDLE_GEMFILE=./Gemfile bundle exec rake')