diff --git a/gnu/services/databases.scm b/gnu/services/databases.scm
index 956993de7a..eba88cdb68 100644
--- a/gnu/services/databases.scm
+++ b/gnu/services/databases.scm
@@ -364,7 +364,7 @@ (define-record-type* <postgresql-role-configuration>
   postgresql-role-configuration make-postgresql-role-configuration
   postgresql-role-configuration?
   (host             postgresql-role-configuration-host ;string
-                    (default "/var/run/postgresql"))
+                    (default "/tmp"))
   (log              postgresql-role-configuration-log ;string
                     (default "/var/log/postgresql_roles.log"))
   (roles            postgresql-role-configuration-roles