diff --git a/roles/patroni/templates/patroni.yml.j2 b/roles/patroni/templates/patroni.yml.j2
index 83ee54929..e9d445b03 100644
--- a/roles/patroni/templates/patroni.yml.j2
+++ b/roles/patroni/templates/patroni.yml.j2
@@ -90,7 +90,7 @@ bootstrap:
       use_slots: true
       parameters:
       {% for parameter in postgresql_parameters %}
-        {{ parameter.option }}: {{ parameter.value }}
+        {{ parameter.option }}: "{{ parameter.value }}"
       {% endfor %}
     {% if patroni_standby_cluster.host is defined and patroni_standby_cluster.host | length > 0 %}
     standby_cluster: