diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index fd05c81cb348fe04a0701aad70d672a7f17f238e..de2e950a0a7a8724a06618b45334e0c544278f70 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -87,7 +87,7 @@ struct virtio_chan {
 	/* This is global limit. Since we don't have a global structure,
 	 * will be placing it in each channel.
 	 */
-	int p9_max_pages;
+	unsigned long p9_max_pages;
 	/* Scatterlist: can be too big for stack. */
 	struct scatterlist sg[VIRTQUEUE_NUM];