diff --git a/configure.in b/configure.in
index 7185ae9c1..d230d8fe5 100644
--- a/configure.in
+++ b/configure.in
@@ -1,7 +1,7 @@
 dnl process this file with autoconf to generate the configure script
 
 AC_INIT(src/mkvmerge.cpp)
-AM_INIT_AUTOMAKE(mkvtoolnix,0.6.3)
+AM_INIT_AUTOMAKE(mkvtoolnix,0.6.4)
 
 AC_PROG_CC
 AC_PROG_CXX