diff --git a/letsencrypt-auto-source/letsencrypt-auto.template b/letsencrypt-auto-source/letsencrypt-auto.template
index 43d8bc7e1..07f52147b 100755
--- a/letsencrypt-auto-source/letsencrypt-auto.template
+++ b/letsencrypt-auto-source/letsencrypt-auto.template
@@ -197,6 +197,7 @@ Bootstrap() {
     echo "You will need to bootstrap, configure virtualenv, and run pip install manually."
     echo "Please see https://letsencrypt.readthedocs.org/en/latest/contributing.html#prerequisites"
     echo "for more info."
+    exit 1
   fi
 }