diff --git a/hosts/common/optional/distributed-builds/local-machine.nix b/hosts/common/optional/distributed-builds/local-machine.nix
index 24d37a2..0abefb1 100644
--- a/hosts/common/optional/distributed-builds/local-machine.nix
+++ b/hosts/common/optional/distributed-builds/local-machine.nix
@@ -20,12 +20,11 @@ in
     }
   ];
 
-  # TODO: set known host here when have static ip on main server
-  # programs.ssh.knownHosts = {
-  #   "merlin" = {
-  #     publicKey = "server pubkey";
-  #   };
-  # };
+  programs.ssh.knownHosts = {
+    "merlin" = {
+      publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIFSGyrQvwa7gj0tG/EX3siWzGT9badUkD0yw0YGkcNeQ root@merlin";
+    };
+  };
 
   programs.ssh.extraConfig = ''
     Host ${remoteMachineIp}