diff --git a/sys/amd64/amd64/busdma_machdep.c b/sys/amd64/amd64/busdma_machdep.c
index b701ab09917e..7d2fdb59f766 100644
--- a/sys/amd64/amd64/busdma_machdep.c
+++ b/sys/amd64/amd64/busdma_machdep.c
@@ -816,7 +816,7 @@ alloc_bounce_pages(bus_dma_tag_t dmat, u_int numpages)
 							 M_NOWAIT, 0ul,
 							 dmat->lowaddr,
 							 PAGE_SIZE,
-							 0);
+							 dmat->boundary);
 		mtx_unlock(&Giant);
 		if (bpage->vaddr == 0) {
 			free(bpage, M_DEVBUF);
diff --git a/sys/i386/i386/busdma_machdep.c b/sys/i386/i386/busdma_machdep.c
index 02db2bdc1e03..5ffdcf9b888b 100644
--- a/sys/i386/i386/busdma_machdep.c
+++ b/sys/i386/i386/busdma_machdep.c
@@ -818,7 +818,7 @@ alloc_bounce_pages(bus_dma_tag_t dmat, u_int numpages)
 							 M_NOWAIT, 0ul,
 							 dmat->lowaddr,
 							 PAGE_SIZE,
-							 0);
+							 dmat->boundary);
 		mtx_unlock(&Giant);
 		if (bpage->vaddr == 0) {
 			free(bpage, M_DEVBUF);
diff --git a/sys/ia64/ia64/busdma_machdep.c b/sys/ia64/ia64/busdma_machdep.c
index dd29ff6ef841..69f69ec970d0 100644
--- a/sys/ia64/ia64/busdma_machdep.c
+++ b/sys/ia64/ia64/busdma_machdep.c
@@ -872,7 +872,7 @@ alloc_bounce_pages(bus_dma_tag_t dmat, u_int numpages)
 							 M_NOWAIT, 0ul,
 							 dmat->lowaddr,
 							 PAGE_SIZE,
-							 0);
+							 dmat->boundary);
 		mtx_unlock(&Giant);
 		if (bpage->vaddr == NULL) {
 			free(bpage, M_DEVBUF);