diff --git a/block/blk-settings.c b/block/blk-settings.c
index f8f2ddf..a3600a7 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -214,7 +214,7 @@
 	 */
 	if (b_pfn < (min_t(u64, 0xffffffffUL, BLK_BOUNCE_HIGH) >> PAGE_SHIFT))
 		dma = 1;
-	q->limits.bounce_pfn = max_low_pfn;
+	q->limits.bounce_pfn = max(max_low_pfn, b_pfn);
 #else
 	if (b_pfn < blk_max_low_pfn)
 		dma = 1;