diff --git a/tasks/config/postgresql_server.yml b/tasks/config/postgresql_server.yml
index d185cc3..f83e935 100644
--- a/tasks/config/postgresql_server.yml
+++ b/tasks/config/postgresql_server.yml
@@ -3,7 +3,7 @@
 - name: Set postgresql server install method
   ansible.builtin.set_fact:
     postgresql_server:
-      method: "{{ pkgconfig.postgresql_server.method[ansible_os_family] | pkgconfig.postgresql_server.method.default }}"
+      method: "{{ pkgconfig.postgresql_server.method[ansible_os_family] | default(pkgconfig.postgresql_server.method.default) }}"
       vers: "{{ pkgconfig.postgresql_server.version }}"
 
 - name: Set postgresql server config