diff --git a/ansible/playbooks/tasks/mantis.yml b/ansible/playbooks/tasks/mantis.yml
index 202b8ff..8d8730b 100644
--- a/ansible/playbooks/tasks/mantis.yml
+++ b/ansible/playbooks/tasks/mantis.yml
@@ -33,7 +33,7 @@
     remote_src: true
 
 - name: Generate crypto salt
-  shell: "cat /dev/urandom | head -c 64 | base64 --wrap=0"
+  shell: "set -o pipefail && cat /dev/urandom | head -c 64 | base64 --wrap=0"
   changed_when: "1 != 1"
   register: cryptosalt_string