diff --git a/nixos/modules/services/networking/namecoind.nix b/nixos/modules/services/networking/namecoind.nix
index 9df9f67cde83..11f7d7e5caef 100644
--- a/nixos/modules/services/networking/namecoind.nix
+++ b/nixos/modules/services/networking/namecoind.nix
@@ -173,7 +173,7 @@ in
 
       serviceConfig = {
         User  = "namecoin";
-        Griup = "namecoin";
+        Group = "namecoin";
         ExecStart  = "${pkgs.altcoins.namecoind}/bin/namecoind -conf=${configFile} -datadir=${dataDir} -printtoconsole";
         ExecStop   = "${pkgs.coreutils}/bin/kill -KILL $MAINPID";
         ExecReload = "${pkgs.coreutils}/bin/kill -HUP $MAINPID";