diff --git a/sys/dev/twa/tw_osl_freebsd.c b/sys/dev/twa/tw_osl_freebsd.c
index b1fd287c0b2a..d18fd0a746b0 100644
--- a/sys/dev/twa/tw_osl_freebsd.c
+++ b/sys/dev/twa/tw_osl_freebsd.c
@@ -492,7 +492,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
 	if (bus_dma_tag_create(NULL,			/* parent */
 				sc->alignment,		/* alignment */
 				0,			/* boundary */
-				BUS_SPACE_MAXADDR,	/* lowaddr */
+				BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
 				BUS_SPACE_MAXADDR, 	/* highaddr */
 				NULL, NULL, 		/* filter, filterarg */
 				TW_CL_MAX_IO_SIZE,	/* maxsize */
@@ -515,7 +515,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
 	if (bus_dma_tag_create(sc->parent_tag,		/* parent */
 				sc->alignment,		/* alignment */
 				0,			/* boundary */
-				BUS_SPACE_MAXADDR,	/* lowaddr */
+				BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
 				BUS_SPACE_MAXADDR, 	/* highaddr */
 				NULL, NULL, 		/* filter, filterarg */
 				dma_mem_size,		/* maxsize */
@@ -562,7 +562,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
 	if (bus_dma_tag_create(sc->parent_tag,		/* parent */
 				sc->alignment,		/* alignment */
 				0,			/* boundary */
-				BUS_SPACE_MAXADDR,	/* lowaddr */
+				BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
 				BUS_SPACE_MAXADDR, 	/* highaddr */
 				NULL, NULL, 		/* filter, filterarg */
 				TW_CL_MAX_IO_SIZE,	/* maxsize */
@@ -588,7 +588,7 @@ tw_osli_alloc_mem(struct twa_softc *sc)
 	if (bus_dma_tag_create(sc->parent_tag,		/* parent */
 				sc->alignment,		/* alignment */
 				0,			/* boundary */
-				BUS_SPACE_MAXADDR,	/* lowaddr */
+				BUS_SPACE_MAXADDR_32BIT,/* lowaddr */
 				BUS_SPACE_MAXADDR, 	/* highaddr */
 				NULL, NULL, 		/* filter, filterarg */
 				TW_CL_MAX_IO_SIZE,	/* maxsize */