diff --git a/.circleci/generate.sh b/.circleci/generate.sh
index a40e002da7..15c2849645 100755
--- a/.circleci/generate.sh
+++ b/.circleci/generate.sh
@@ -19,6 +19,7 @@
 
 BASEDIR=`dirname $0`
 BASE_BRANCH=cassandra-3.11
+set -e
 
 die ()
 {