diff --git a/nix/pkgs/switches/junos.nix b/nix/pkgs/switches/junos.nix
index 32dfd2c..326b5bc 100644
--- a/nix/pkgs/switches/junos.nix
+++ b/nix/pkgs/switches/junos.nix
@@ -69,7 +69,7 @@ let
       ${concatMapStrings (name:
         let
           linkConfig = hostConfig.links.${name};
-          group = toString linkConfig.group;
+          group = linkConfig.group;
           isBond = linkConfig.group != null &&
                    builtins.length linkConfig.ports > 1;
           nets = map (net: