diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 550a3c039615..ef7479937ee5 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -3786,6 +3786,7 @@ bool mptcp_finish_join(struct sock *ssk)
 	mptcp_data_unlock(parent);
 
 	if (!ret) {
+		mptcp_pm_close_subflow(msk);
 err_prohibited:
 		subflow->reset_reason = MPTCP_RST_EPROHIBIT;
 		return false;