diff --git a/tasks/RedHat/main.yaml b/tasks/RedHat/main.yaml
index fe98415..f3268b3 100644
--- a/tasks/RedHat/main.yaml
+++ b/tasks/RedHat/main.yaml
@@ -46,7 +46,7 @@
   when: postgresql_wal_g_restore_from_backup
 
 - name: PostgreSQL Initdb
-  shell: "/usr/pgsql-{{ postgresql_major_version }}/bin/postgresql-{{ postgresql_major_version }}-setup initdb --username {{ postgresql_superuser_username }} --auth-host {{ postgresql_password_encryption_algorithm }}"
+  shell: "PGSETUP_INITDB_OPTIONS='--username {{ postgresql_superuser_username }} --auth-host {{ postgresql_password_encryption_algorithm }}' /usr/pgsql-{{ postgresql_major_version }}/bin/postgresql-{{ postgresql_major_version }}-setup initdb"
   register: initdb
   changed_when: "'Data directory is not empty!' not in initdb.stdout"
   failed_when: false