diff --git a/configure.ac b/configure.ac
index 8a990746..2076082e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -22,7 +22,7 @@
 #
 
 AC_PREREQ(2.59)
-AC_INIT([ntfsprogs],[1.13.0],[linux-ntfs-dev@lists.sourceforge.net])
+AC_INIT([ntfsprogs],[1.13.1-WIP],[linux-ntfs-dev@lists.sourceforge.net])
 
 #
 # Before making a release, the LTVERSION string should be modified.