diff --git a/255 b/255
index 0083963..700c3c0 100755
--- a/255
+++ b/255
@@ -1,7 +1,7 @@
 #! /bin/bash
 # FS QA Test No. 255
 #
-# Test Generic fallocate hole punching
+# Test Generic fallocate hole punching w/ unwritten extent
 #
 #-----------------------------------------------------------------------
 # Copyright (c) 2010 Red Hat.  All Rights Reserved.
@@ -47,6 +47,7 @@ trap "_cleanup ; exit \$status" 0 1 2 3 15
 _supported_fs generic 
 _supported_os Linux
 
+_require_xfs_io_falloc
 _require_xfs_io_falloc_punch
 _require_xfs_io_fiemap