diff --git a/src/vnet/devices/af_packet/node.c b/src/vnet/devices/af_packet/node.c
index 0e522c9..8c72afb 100644
--- a/src/vnet/devices/af_packet/node.c
+++ b/src/vnet/devices/af_packet/node.c
@@ -246,7 +246,7 @@
   u32 num_pkts = 0;
   u32 rx_frame_offset = 0;
   block_desc_t *bd = 0;
-  vlib_buffer_t bt;
+  vlib_buffer_t bt = {};
   u8 is_ip = (apif->mode == AF_PACKET_IF_MODE_IP);
 
   if (is_ip)