diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c
index 146aad1fbc0f..1f64d73acdd2 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_traverse.c
@@ -351,9 +351,9 @@ traverse_visitbp(traverse_data_t *td, const dnode_phys_t *dnp,
 		prefetch_dnode_metadata(td, dnp, zb->zb_objset,
 		    DMU_META_DNODE_OBJECT);
 		if (arc_buf_size(buf) >= sizeof (objset_phys_t)) {
-			prefetch_dnode_metadata(td, &osp->os_userused_dnode,
-			    zb->zb_objset, DMU_USERUSED_OBJECT);
 			prefetch_dnode_metadata(td, &osp->os_groupused_dnode,
+			    zb->zb_objset, DMU_GROUPUSED_OBJECT);
+			prefetch_dnode_metadata(td, &osp->os_userused_dnode,
 			    zb->zb_objset, DMU_USERUSED_OBJECT);
 		}
 
@@ -364,18 +364,18 @@ traverse_visitbp(traverse_data_t *td, const dnode_phys_t *dnp,
 			err = 0;
 		}
 		if (err == 0 && arc_buf_size(buf) >= sizeof (objset_phys_t)) {
-			dnp = &osp->os_userused_dnode;
+			dnp = &osp->os_groupused_dnode;
 			err = traverse_dnode(td, dnp, zb->zb_objset,
-			    DMU_USERUSED_OBJECT);
+			    DMU_GROUPUSED_OBJECT);
 		}
 		if (err && hard) {
 			lasterr = err;
 			err = 0;
 		}
 		if (err == 0 && arc_buf_size(buf) >= sizeof (objset_phys_t)) {
-			dnp = &osp->os_groupused_dnode;
+			dnp = &osp->os_userused_dnode;
 			err = traverse_dnode(td, dnp, zb->zb_objset,
-			    DMU_GROUPUSED_OBJECT);
+			    DMU_USERUSED_OBJECT);
 		}
 	}