diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 7495e20c3dec..55ffd7d4de51 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -1316,7 +1316,7 @@ static int copy_resize_cqes(struct mlx5_ib_cq *cq)
 
 	while (get_cqe_opcode(scqe64) != MLX5_CQE_RESIZE_CQ) {
 		dcqe = mlx5_frag_buf_get_wqe(&cq->resize_buf->fbc,
-					     (i + 1) & cq->resize_buf->nent);
+					     (i + 1) & (cq->resize_buf->nent - 1));
 		dcqe64 = dsize == 64 ? dcqe : dcqe + 64;
 		sw_own = sw_ownership_bit(i + 1, cq->resize_buf->nent);
 		memcpy(dcqe, scqe, dsize);