diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index d1ba41153b66..1621c24aebf8 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -2737,7 +2737,7 @@ static int smp_cmd_public_key(struct l2cap_conn *conn, struct sk_buff *skb)
 	if (!test_bit(SMP_FLAG_DEBUG_KEY, &smp->flags) &&
 	    !crypto_memneq(key, smp->local_pk, 64)) {
 		bt_dev_err(hdev, "Remote and local public keys are identical");
-		return SMP_UNSPECIFIED;
+		return SMP_DHKEY_CHECK_FAILED;
 	}
 
 	memcpy(smp->remote_pk, key, 64);