diff --git a/clock.c b/clock.c
index c541951..a85efde 100644
--- a/clock.c
+++ b/clock.c
@@ -785,7 +785,7 @@ static void clock_forward_mgmt_msg(struct clock *c, struct port *p, struct ptp_m
 					msg->management.boundaryHops--;
 					msg_pre_send(msg);
 				}
-				if (port_forward(fwd, msg, pdulen))
+				if (port_forward(fwd, msg))
 					pr_err("port %d: management forward failed", i + 1);
 			}
 		}
diff --git a/port.c b/port.c
index e840673..164de9b 100644
--- a/port.c
+++ b/port.c
@@ -2163,7 +2163,7 @@ enum fsm_event port_event(struct port *p, int fd_index)
 	return event;
 }
 
-int port_forward(struct port *p, struct ptp_message *msg, int msglen)
+int port_forward(struct port *p, struct ptp_message *msg)
 {
 	int cnt;
 	cnt = transport_send(p->trp, &p->fda, 0, msg);
diff --git a/port.h b/port.h
index 804e463..86a6f17 100644
--- a/port.h
+++ b/port.h
@@ -87,10 +87,9 @@ enum fsm_event port_event(struct port *port, int fd_index);
  * Forward a message on a given port.
  * @param port    A pointer previously obtained via port_open().
  * @param msg     The message to send. Must be in network byte order.
- * @param msglen  The length of the message in bytes.
  * @return        Zero on success, non-zero otherwise.
  */
-int port_forward(struct port *p, struct ptp_message *msg, int msglen);
+int port_forward(struct port *p, struct ptp_message *msg);
 
 /**
  * Prepare message for transmission and send it to a given port. Note that