diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index de90a2897d2d..79db15903e7a 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -161,7 +161,7 @@ static int mptcp_setsockopt_sol_socket_tstamp(struct mptcp_sock *msk, int optnam
 		struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
 		bool slow = lock_sock_fast(ssk);
 
-		sock_set_timestamp(sk, optname, !!val);
+		sock_set_timestamp(ssk, optname, !!val);
 		unlock_sock_fast(ssk, slow);
 	}
 
@@ -237,7 +237,7 @@ static int mptcp_setsockopt_sol_socket_timestamping(struct mptcp_sock *msk,
 		struct sock *ssk = mptcp_subflow_tcp_sock(subflow);
 		bool slow = lock_sock_fast(ssk);
 
-		sock_set_timestamping(sk, optname, timestamping);
+		sock_set_timestamping(ssk, optname, timestamping);
 		unlock_sock_fast(ssk, slow);
 	}