diff --git a/nixos/layers/zsh.nix b/nixos/layers/zsh.nix
index 9bd6cec7c59de503e124b19e130ba8c28935e0de..e796dba8c38dceb7fd47980916ca57c7cbbf99f5 100644
--- a/nixos/layers/zsh.nix
+++ b/nixos/layers/zsh.nix
@@ -48,6 +48,8 @@ fi
     myip = "drill @resolver1.opendns.com any myip.opendns.com";
     myipv4 = "drill -4 @resolver1.opendns.com any myip.opendns.com";
     myipv6 = "drill -6 @resolver1.opendns.com any myip.opendns.com";
+
+    visual-hostkey = "ssh-keygen -lvf /etc/ssh/ssh_host_ed25519_key.pub";
   };
 
   environment.shellInit = ''