diff --git a/src/bpf_helper_defs.h b/src/bpf_helper_defs.h
index e417e32..f36ee02 100644
--- a/src/bpf_helper_defs.h
+++ b/src/bpf_helper_defs.h
@@ -3705,17 +3705,19 @@ static void *(* const bpf_this_cpu_ptr)(const void *percpu_ptr) = (void *) 154;
  *
  * 	Redirect the packet to another net device of index *ifindex*.
  * 	This helper is somewhat similar to **bpf_redirect**\ (), except
- * 	that the redirection happens to the *ifindex*' peer device and
- * 	the netns switch takes place from ingress to ingress without
- * 	going through the CPU's backlog queue.
+ * 	that the redirection happens to the *ifindex*' peer device. If
+ * 	*flags* is 0, the netns switch takes place from ingress to
+ * 	ingress without going through the CPU's backlog queue. If the
+ * 	**BPF_F_EGRESS** flag is provided then redirection happens in
+ * 	the egress direction of the peer device.
  *
  * 	*skb*\ **->mark** and *skb*\ **->tstamp** are not cleared during
  * 	the netns switch.
  *
- * 	The *flags* argument is reserved and must be 0. The helper is
- * 	currently only supported for tc BPF program types at the
- * 	ingress hook and for veth and netkit target device types. The
- * 	peer device must reside in a different network namespace.
+ * 	If the *flags* argument is 0, the helper is currently only
+ * 	supported for tc BPF program types at the ingress hook and for
+ * 	veth and netkit target device types. The peer device must reside
+ * 	in a different network namespace.
  *
  * Returns
  * 	The helper returns **TC_ACT_REDIRECT** on success or