Multipath Transmission Control Protocol (MPTCP) promises higher bandwidth and higher resilience against network path failures as an evolving technology for the future Internet. MPTCP allows multiple paths between two devices to be pooled and appear to the application as a single end-to-end transport connection. In this paper, we propose a solution for the packet reordering problem, to improve path utilization and aggregate throughput. The proposed method maintains the congestion window size when three duplicate acknowledgements occur to avoid unnecessary reductions in transmission rate. We evaluate the performance of the proposed solution using an NS-3 in different wireless scenarios and compare it against the performance of other existing reordering methods. The results show that the proposed method improves the aggregate throughput and path utilization when the packet drop rate is high.