diff --git a/src/internet-stack/wscript b/src/internet-stack/wscript
index 9c49cae6c..9ad35f200 100644
--- a/src/internet-stack/wscript
+++ b/src/internet-stack/wscript
@@ -138,12 +138,13 @@ def build(bld):
         'tcp-l4-protocol.h',
         'icmpv4-l4-protocol.h',
         'ipv4-l4-protocol.h',
+        'arp-header.h',
         'arp-cache.h',
         'icmpv6-l4-protocol.h',
         'ipv6-l4-protocol.h',
         'ipv6-interface.h',
         'ndisc-cache.h',
-	'loopback-net-device.h'
+        'loopback-net-device.h',
        ]
 
     if bld.env['NSC_ENABLED']: