diff --git a/ops/nixos/rexxar/default.nix b/ops/nixos/rexxar/default.nix
index afa34174dd..f771f51ea9 100644
--- a/ops/nixos/rexxar/default.nix
+++ b/ops/nixos/rexxar/default.nix
@@ -365,7 +365,7 @@
   users.users.lukegb.extraGroups = lib.mkAfter [ "hackyplayer" ];
   users.users.samw = {
     isNormalUser = true;
-    extraGroups = lib.mkAfter [ "hackyplayer "];
+    extraGroups = lib.mkAfter [ "hackyplayer" ];
     openssh.authorizedKeys.keys = [
       "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBDQdGzwYiallvWXIHgSAf2GOwMJKA8bxPmwyuO+vsd1HwB65hMRPCpKS+FNLIpkrADNnuhGS3xGCGSSuQ+zAu/g="
       "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNLrJyUXmiFWb9vhlTWZLYr64IsKut+c9TGqq3/uwPDeF4X0Qb2jzxqXfQcDSztjR09JHbC8BOqfpYYT9LHahIo="