diff --git a/nixos/modules/services/admin/oxidized.nix b/nixos/modules/services/admin/oxidized.nix
index 885eaed1de6f..94b44630ba6c 100644
--- a/nixos/modules/services/admin/oxidized.nix
+++ b/nixos/modules/services/admin/oxidized.nix
@@ -111,7 +111,7 @@ in
         Restart  = "always";
         WorkingDirectory = cfg.dataDir;
         KillSignal = "SIGKILL";
-        PIDFile = "${cfg.dataDir}.config/oxidized/pid";
+        PIDFile = "${cfg.dataDir}/.config/oxidized/pid";
       };
     };
   };