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Diffstat (limited to 'nixpkgs/nixos/modules/services/backup/borgbackup.nix')
-rw-r--r--nixpkgs/nixos/modules/services/backup/borgbackup.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/nixpkgs/nixos/modules/services/backup/borgbackup.nix b/nixpkgs/nixos/modules/services/backup/borgbackup.nix
index 0da70112d48d..3b44f097ab79 100644
--- a/nixpkgs/nixos/modules/services/backup/borgbackup.nix
+++ b/nixpkgs/nixos/modules/services/backup/borgbackup.nix
@@ -33,7 +33,7 @@ let
     }
     trap on_exit EXIT
 
-    archiveName="${if cfg.archiveBaseName == null then "" else cfg.archiveBaseName + "-"}$(date ${cfg.dateFormat})"
+    archiveName="${optionalString (cfg.archiveBaseName != null) (cfg.archiveBaseName + "-")}$(date ${cfg.dateFormat})"
     archiveSuffix="${optionalString cfg.appendFailedSuffix ".failed"}"
     ${cfg.preHook}
   '' + optionalString cfg.doInit ''