diff --git a/roles/postgres-ha/defaults/main.yml b/roles/postgres-ha/defaults/main.yml
index 038debef0316c504031f3fd4cffb37f6bf28aac9..cfc389595af4be7b732b524619e99f017fbfe7c6 100644
--- a/roles/postgres-ha/defaults/main.yml
+++ b/roles/postgres-ha/defaults/main.yml
@@ -22,7 +22,7 @@ repmgr_primary_node: "{{ hostvars[groups['postgres'][0]]['ansible_default_ipv4']
 
 repmgr_timeout: 5
 
-repmgr_node_id: "{{ (groups['postgres'].index(inventory_hostname))+1|int }}"
+repmgr_node_id: "{{ (groups['postgres'].index(inventory_hostname))+1 | int }}"
 repmgr_node_name: "{{ ansible_hostname }}"
 repmgr_conninfo: host={{ ansible_default_ipv4.address }} dbname={{ repmgr_db }} user={{ repmgr_user }} connect_timeout={{ repmgr_timeout }}