diff --git a/vars/RedHat-8.yml b/vars/RedHat-8.yml
index bfd5df7..e519ea9 100644
--- a/vars/RedHat-8.yml
+++ b/vars/RedHat-8.yml
@@ -8,4 +8,5 @@ __postgresql_packages:
   - postgresql
   - postgresql-server
   - postgresql-contrib
+__postgresql_unix_socket_directories_mode: '0755'
 postgresql_python_library: python3-psycopg2