diff --git a/ansible/roles/config/tasks/main.yml b/ansible/roles/config/tasks/main.yml
index 155c7305d..c384cd687 100644
--- a/ansible/roles/config/tasks/main.yml
+++ b/ansible/roles/config/tasks/main.yml
@@ -2,12 +2,14 @@
 
 - name: gather tendermint public keys
   when: validators == true and tendermint_genesis_file is not defined
-  shell: "tendermint show_validator --home /etc/{{service}}/tendermint --log_level error"
+  command: "tendermint show_validator --home /etc/{{service}}/tendermint --log_level error"
   become: yes
   become_user: "{{service}}"
   register: pubkeys
   changed_when: false
 
+- debug: var=pubkeys
+
 - name: register tendermint public keys as host facts
   when: validators == true and tendermint_genesis_file is not defined
   set_fact: "pubkey='{{pubkeys.stdout}}'"