diff --git a/xCAT-OpenStack/debian/source/format b/xCAT-OpenStack/debian/source/format
index 163aaf8d8..d3827e75a 100644
--- a/xCAT-OpenStack/debian/source/format
+++ b/xCAT-OpenStack/debian/source/format
@@ -1 +1 @@
-3.0 (quilt)
+1.0