diff --git a/nixos/modules/services/misc/jellyfin.nix b/nixos/modules/services/misc/jellyfin.nix
index 04cf82f8a46b..789b78702e9b 100644
--- a/nixos/modules/services/misc/jellyfin.nix
+++ b/nixos/modules/services/misc/jellyfin.nix
@@ -53,7 +53,10 @@ in
         User = cfg.user;
         Group = cfg.group;
         StateDirectory = "jellyfin";
+        StateDirectoryMode = "0700";
         CacheDirectory = "jellyfin";
+        CacheDirectoryMode = "0700";
+        UMask = "0077";
         ExecStart = "${cfg.package}/bin/jellyfin --datadir '/var/lib/${StateDirectory}' --cachedir '/var/cache/${CacheDirectory}'";
         Restart = "on-failure";