diff --git a/drivers/vfio/pci/mlx5/cmd.c b/drivers/vfio/pci/mlx5/cmd.c
index 5fe0621b5fbd..04180035a7fe 100644
--- a/drivers/vfio/pci/mlx5/cmd.c
+++ b/drivers/vfio/pci/mlx5/cmd.c
@@ -1644,7 +1644,7 @@ set_report_output(u32 size, int index, struct mlx5_vhca_qp *qp,
 	int i;
 
 	buf_offset = index * qp->max_msg_size;
-	if (WARN_ON(buf_offset + size >= qp->recv_buf.npages * PAGE_SIZE ||
+	if (WARN_ON(buf_offset + size > qp->recv_buf.npages * PAGE_SIZE ||
 		    (nent > qp->max_msg_size / entry_size)))
 		return;