1 files changed, 1 insertions, 1 deletions

diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index a7ba0cce0b46..068d8afbf0a7 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -121,7 +121,7 @@ void br_send_tcn_bpdu(struct net_bridge_port *p)
         buf[1] = 0;
         buf[2] = 0;
         buf[3] = BPDU_TYPE_TCN;
-        br_send_bpdu(p, buf, 7);
+        br_send_bpdu(p, buf, 4);
 }
 
 /*