diff --git a/src/vnet/devices/af_packet/af_packet.c b/src/vnet/devices/af_packet/af_packet.c
index c51fded..2a13510 100644
--- a/src/vnet/devices/af_packet/af_packet.c
+++ b/src/vnet/devices/af_packet/af_packet.c
@@ -288,6 +288,8 @@
     template.file_descriptor = fd;
     template.private_data = if_index;
     template.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
+    template.description = format (0, "%U", format_af_packet_device_name,
+				   if_index);
     apif->clib_file_index = clib_file_add (&file_main, &template);
   }
 
diff --git a/src/vnet/devices/af_packet/af_packet.h b/src/vnet/devices/af_packet/af_packet.h
index b095e7f..18822f8 100644
--- a/src/vnet/devices/af_packet/af_packet.h
+++ b/src/vnet/devices/af_packet/af_packet.h
@@ -66,6 +66,8 @@
 int af_packet_set_l4_cksum_offload (vlib_main_t * vm, u32 sw_if_index,
 				    u8 set);
 
+format_function_t format_af_packet_device_name;
+
 /*
  * fd.io coding-style-patch-verification: ON
  *
diff --git a/src/vnet/devices/af_packet/device.c b/src/vnet/devices/af_packet/device.c
index b9492b3..2c2489b 100644
--- a/src/vnet/devices/af_packet/device.c
+++ b/src/vnet/devices/af_packet/device.c
@@ -51,7 +51,7 @@
 };
 
 
-static u8 *
+u8 *
 format_af_packet_device_name (u8 * s, va_list * args)
 {
   u32 i = va_arg (*args, u32);