diff --git a/machines/thinkcentre/configuration.nix b/machines/thinkcentre/configuration.nix
index 58887a7..f76b785 100644
--- a/machines/thinkcentre/configuration.nix
+++ b/machines/thinkcentre/configuration.nix
@@ -24,6 +24,7 @@
           publicKey = "sdqT2l1HRe9rDYejJ+luQK8zdC+/KqDuQ1rpvZq/KlQ=";
           endpoint = "150.136.162.107:51820";
           allowedIPs = ["10.0.10.1/24"];
+          persistentKeepalive = 25;
         }
       ];
     };