diff --git a/modules/services/ssh.nix b/modules/services/ssh.nix
index 7143995..56ac2fc 100644
--- a/modules/services/ssh.nix
+++ b/modules/services/ssh.nix
@@ -8,6 +8,7 @@ in
   let
     cfg = config.ssh;
     userCAPath = "ssh/ssh_user_ca.pub";
+    hostKeyFile = "ssh/ssh_host_ed25519_key";
   in
   {
     options.ssh = {
@@ -28,11 +29,11 @@ in
           {
             PasswordAuthentication = false;
             KbdInteractiveAuthentication = false;
-            HostKey = "/etc/ssh/ssh_host_ed25519_key";
+            HostKey = "/etc/${hostKeyFile}";
           }
           (lib.mkIf cfg.certificates.enable {
             TrustedUserCAKeys = "/etc/${userCAPath}";
-            HostCertificate = "/etc/ssh/ssh_host_ed25519_key-cert.pub";
+            HostCertificate = "/etc/${hostKeyFile}-cert.pub";
           })
         ];
       };