From 508477f076b23a7d332e91f899b61e035b473b54 Mon Sep 17 00:00:00 2001
From: Markus Kowalewski <markus.kowalewski@gmail.com>
Date: Mon, 18 Jun 2018 23:58:30 +0200
Subject: [PATCH] nixos-18.03/pgbackup: Fix bug in postgresql-backup module
 that causes pg_dump to fail

Run pg_dump as postgres super user instead of root.
See https://github.com/NixOS/nixpkgs/issues/41388
---
 nixos/modules/services/backup/postgresql-backup.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/services/backup/postgresql-backup.nix b/nixos/modules/services/backup/postgresql-backup.nix
index 4a5ebebc682e1..978eeccd3573b 100644
--- a/nixos/modules/services/backup/postgresql-backup.nix
+++ b/nixos/modules/services/backup/postgresql-backup.nix
@@ -9,7 +9,7 @@ let
 
   postgresqlBackupCron = db:
     ''
-      ${config.services.postgresqlBackup.period} root ${config.services.postgresql.package}/bin/pg_dump ${db} | ${gzip}/bin/gzip -c > ${location}/${db}.gz
+      ${config.services.postgresqlBackup.period} root ${config.services.postgresql.package}/bin/pg_dump ${db} -U postgres | ${gzip}/bin/gzip -c > ${location}/${db}.gz
     '';
 
 in