diff --git a/juniper-macros.j2 b/juniper-macros.j2
index bdac076..b97a0d1 100644
--- a/juniper-macros.j2
+++ b/juniper-macros.j2
@@ -213,7 +213,7 @@ interfaces {
     }
 {% endif %}
 {# Physical interfaces should be sorted by FPC/PIC/Port value - that's a challenge to do in Jinja so we cheat for now by putting the xe- interfaces first. This won't work for all devices! #}
-{% for interface in device.interfaces.filter(name__contains='-')|natsort(key=lambda y: y.name.split("-",1)[1]) %}
+{% for interface in device.interfaces.filter(name__contains='-')|j2_natsort(attribute="name) %}
 {{ interfaceconfig(interface) }}
 {% endfor %}
 {% for interface in device.interfaces.filter(name__startswith='ae') %}