diff --git a/hosts/harmonica/default.nix b/hosts/harmonica/default.nix
index e18a09b9..98aa4907 100644
--- a/hosts/harmonica/default.nix
+++ b/hosts/harmonica/default.nix
@@ -19,5 +19,5 @@ in
 
   networking.hostName = name;
   networking.computerName = name;
-  smb.NetBIOSName = name;
+  system.defaults.smb.NetBIOSName = name;
 }