diff --git a/src/opnsense/service/templates/OPNsense/IPFW/ipfw.conf b/src/opnsense/service/templates/OPNsense/IPFW/ipfw.conf
index b80ac6b65..f04770d6f 100644
--- a/src/opnsense/service/templates/OPNsense/IPFW/ipfw.conf
+++ b/src/opnsense/service/templates/OPNsense/IPFW/ipfw.conf
@@ -182,7 +182,7 @@ add {{loop.index + 60000}} {{ helpers.getUUIDtag(rule.target) }} {{
     if rule.source_not|default('0') == '1' %}not {% endif %}{{ convert_address(rule, 'source') }} to {%
     if rule.destination_not|default('0') == '1' %}not {% endif %}{{convert_address(rule, 'destination')
     }} src-port  {{ rule.src_port }} dst-port {{ rule.dst_port }} xmit {{
-    physical_interface(rule.interface) }} {%
+    helpers.physical_interface(rule.interface) }} {%
     if rule.proto.split('_')[1]|default('') == 'ack' %} {{ rule.proto.split('_')[2]|default('') }} tcpflags ack {% endif %}{%
     if rule.iplen|default('') != '' %} iplen 1-{{ rule.iplen }}{% endif %}{%
     if rule.dscp|default('') != '' %} dscp {{ rule.dscp }}{% endif %}