diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index f8812097d63d..736a6481d20f 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -2033,7 +2033,7 @@ static void __mptcp_check_send_data_fin(struct sock *sk)
 	struct mptcp_subflow_context *subflow;
 	struct mptcp_sock *msk = mptcp_sk(sk);
 
-	pr_debug("msk=%p snd_data_fin_enable=%d pending=%d snd_nxt=%lld write_seq=%llx",
+	pr_debug("msk=%p snd_data_fin_enable=%d pending=%d snd_nxt=%llu write_seq=%llu",
 		 msk, msk->snd_data_fin_enable, !!mptcp_send_head(sk),
 		 msk->snd_nxt, msk->write_seq);