diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c
index 52b13e0..f46e6f5 100644
--- a/src/vnet/ethernet/arp.c
+++ b/src/vnet/ethernet/arp.c
@@ -203,7 +203,7 @@
 {
   ethernet_arp_header_t *a = va_arg (*va, ethernet_arp_header_t *);
   u32 max_header_bytes = va_arg (*va, u32);
-  uword indent;
+  u32 indent;
   u16 l2_type, l3_type;
 
   if (max_header_bytes != 0 && sizeof (a[0]) > max_header_bytes)