treewide: use optionalString instead of 'then ""'

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/modules/services/web-apps/peertube.nix b/nixos/modules/services/web-apps/peertube.nix
index 4ef2d7dce532..8a1fc3c567cc 100644
--- a/nixos/modules/services/web-apps/peertube.nix
+++ b/nixos/modules/services/web-apps/peertube.nix
@@ -350,7 +350,7 @@ in {
         };
         redis = {
           hostname = "${toString cfg.redis.host}";
-          port = (if cfg.redis.port == null then "" else cfg.redis.port);
+          port = (lib.optionalString (cfg.redis.port != null) cfg.redis.port);
         };
         storage = {
           tmp = lib.mkDefault "/var/lib/peertube/storage/tmp/";