diff --git a/nixos/modules/services/monitoring/uptime-kuma.nix b/nixos/modules/services/monitoring/uptime-kuma.nix
index 5d75d270967b..cab1e989c14e 100644
--- a/nixos/modules/services/monitoring/uptime-kuma.nix
+++ b/nixos/modules/services/monitoring/uptime-kuma.nix
@@ -53,6 +53,7 @@ in
       serviceConfig = {
         Type = "simple";
         StateDirectory = "uptime-kuma";
+        StateDirectoryMode = "750";
         DynamicUser = true;
         ExecStart = "${cfg.package}/bin/uptime-kuma-server";
         Restart = "on-failure";