diff --git a/krebs/3modules/makefu/default.nix b/krebs/3modules/makefu/default.nix
index b04280848..bd7c0db48 100644
--- a/krebs/3modules/makefu/default.nix
+++ b/krebs/3modules/makefu/default.nix
@@ -543,6 +543,29 @@ TNs2RYfwDy/r6H/hDeB/BSngPouedEVcPwIDAQAB
       };
     };
 
+    senderechner = rec {
+      cores = 2;
+      nets = {
+        retiolum = {
+          addrs4 = ["10.243.0.163"];
+          addrs6 = ["42:b67b:5752:a730:5f28:d80d:6b37:5bda/128"];
+          aliases = [
+            "senderechner.r"
+          ];
+          tinc.pubkey = ''
+            -----BEGIN RSA PUBLIC KEY-----
+            MIIBCgKCAQEA0zCc5aLVRO6NuxUoR6BVzq2PQ/U5AEjYTdGkQufRot42N29MhxY7
+            lJBfPfkw/yg2FOzmAzTi62QyrLWSaF1x54rKu+JeNSsOAX+BorGhM67N45DGvJ0X
+            rakIL0BrVoV7Kxssq3DscGVbjbNS5B5c+IvTp97me/MpuDrfYqUyZk5mS9nB0oDL
+            inao/A5AtOO4sdqN5BNE9/KisN/9dD359Gz2ZGGq6Ki7o4HBdBj5vi0f4fTofZxT
+            BJH4BxbWaHwXMC0HYGlhQS0Y7tKYT6h3ChxoLDuW2Ox2IF5AQ/O4t4PIBDp1XaAO
+            OK8SsmsiD6ZZm6q/nLWBkYH08geYfq0BhQIDAQAB
+            -----END RSA PUBLIC KEY-----
+          '';
+        };
+      };
+    };
+
     muhbaasu = rec {
       cores = 1;
       nets = {