diff --git a/src/etc/inc/interfaces.inc b/src/etc/inc/interfaces.inc
index 0e80cf512..bc585a110 100644
--- a/src/etc/inc/interfaces.inc
+++ b/src/etc/inc/interfaces.inc
@@ -2528,7 +2528,7 @@ function interface_configure($verbose = false, $interface = 'wan', $reload = fal
         plugins_configure('dhcp', $verbose);
         plugins_configure('dns', $verbose);
         /* XXX not ideal but avoids "errors" in the log */
-        plugins_configure('newwanip_map:rfc2136', $verbose, [$interface]);
+        plugins_configure('newwanip_map:rfc2136', $verbose, [[$interface]]);
     }
 
     /* XXX device dependency plugin hook */
diff --git a/src/etc/rc.newwanip b/src/etc/rc.newwanip
index d2c199455..aa4ff9918 100755
--- a/src/etc/rc.newwanip
+++ b/src/etc/rc.newwanip
@@ -115,5 +115,5 @@ if (is_ipaddr($cacheip) && $ip != $cacheip) {
 /* register IP change not before this point as basic connectivity is needed */
 @file_put_contents($cacheip_file, $ip . PHP_EOL);
 
-plugins_configure('vpn', false, [$interface, 'inet']);
-plugins_configure('newwanip_map', false, [$interface, 'inet']);
+plugins_configure('vpn', false, [[$interface], 'inet']);
+plugins_configure('newwanip_map', false, [[$interface], 'inet']);
diff --git a/src/etc/rc.newwanipv6 b/src/etc/rc.newwanipv6
index 90adc976b..88bb67ac4 100755
--- a/src/etc/rc.newwanipv6
+++ b/src/etc/rc.newwanipv6
@@ -124,5 +124,5 @@ system_routing_configure(false, $interfaces, true, 'inet6');
 
 filter_configure_sync();
 
-plugins_configure('vpn', false, [join(',', $interfaces), 'inet6']);
-plugins_configure('newwanip_map', false, [join(',', $interfaces), 'inet6']);
+plugins_configure('vpn', false, [$interfaces, 'inet6']);
+plugins_configure('newwanip_map', false, [$interfaces, 'inet6']);