diff --git a/nixos/modules/tahoe.nix b/nixos/modules/tahoe.nix
index 44c381e6b6dfa6039d1dd6a49d44f1afaf51ab10..e4a83006e129e80a59ca9f8262acf74760b4fc98 100644
--- a/nixos/modules/tahoe.nix
+++ b/nixos/modules/tahoe.nix
@@ -293,7 +293,7 @@ in
             isSystemUser = true;
             group = "tahoe.${node}";
           });
-        users.groups = flip mapAttrs' cfg.introducers (node: _:
+        users.groups = flip mapAttrs' cfg.nodes (node: _:
             nameValuePair "tahoe.${node}" {
           });
       })