--- a/usr/src/uts/common/fs/zfs/spa.c	Wed Sep 10 07:38:39 2008 -0700
+++ b/usr/src/uts/common/fs/zfs/spa.c	Wed Sep 10 10:59:12 2008 -0400
@@ -288,6 +288,7 @@
 
 		case ZPOOL_PROP_DELEGATION:
 		case ZPOOL_PROP_AUTOREPLACE:
+		case ZPOOL_PROP_LISTSNAPS:
 			error = nvpair_value_uint64(elem, &intval);
 			if (!error && intval > 1)
 				error = EINVAL;