diff --git a/options/dyndns.nix b/options/dyndns.nix
index 09ea088..90aac18 100644
--- a/options/dyndns.nix
+++ b/options/dyndns.nix
@@ -63,7 +63,7 @@ in
                 dyndns_user="${cfg.username}"
                 dyndns_password="$(cat "${cfg.passwordFile}")"
 
-                new_ip=$(${pkgs.iproute}/bin/ip -6 a show scope global -temporary dev "$interface" | ${pkgs.gnused}/bin/sed -n -E 's/^\ *inet6\ (2001(:[0-9a-f]+)+).*$/\1/p' | head -1)
+                new_ip=$(${pkgs.iproute2}/bin/ip -6 a show scope global -temporary dev "$interface" | ${pkgs.gnused}/bin/sed -n -E 's/^\ *inet6\ (2001(:[0-9a-f]+)+).*$/\1/p' | head -1)
 
                 if [ -z "$new_ip" ] ; then
                     echo "Could not determine IP address."