diff --git a/hosts/pluto/configuration.nix b/hosts/pluto/configuration.nix
index 2cc6562..bd63d64 100644
--- a/hosts/pluto/configuration.nix
+++ b/hosts/pluto/configuration.nix
@@ -126,7 +126,7 @@
   services.openssh = {
     enable = true;
     passwordAuthentication = false;
-    permitRootLogin = false;
+    permitRootLogin = "no";
   };
 
   zmio.blog.enable = true;