diff --git a/script/bootstrap b/script/bootstrap
index e050227..f2459f9 100755
--- a/script/bootstrap
+++ b/script/bootstrap
@@ -25,3 +25,6 @@ set -e
 
 # Bundle install unless we're already up to date.
 /usr/bin/bundle install --binstubs bin --path .bundle --quiet "$@"
+
+# Fix the binstubs to use system ruby
+find bin -type f -print0 | xargs -0 sed -i '' 's|/usr/bin/env ruby|/usr/bin/ruby|g'
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