diff --git a/tasks/configure.yml b/tasks/configure.yml
index 26a6f68..65b739e 100644
--- a/tasks/configure.yml
+++ b/tasks/configure.yml
@@ -16,7 +16,7 @@
     group: "{{ postgresql_group }}"
     mode: 0600
   notify: restart postgresql
-  when: postgresql_hba_entries
+  when: postgresql_hba_entries|bool
 
 - name: Ensure PostgreSQL unix socket dirs exist.
   file: