diff --git a/ChangeLog b/ChangeLog
index 69b32ece5..1dcfda70f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2001-08-24  Pavel Roskin  <proski@gnu.org>
 
+	* configure.in: Bump version to 4.5.99a.
+
 	* configure.in: Bump version to 4.5.55.  Release mc-4.5.55.
 	* po/*.po: Regenerate.
 
diff --git a/configure.in b/configure.in
index 06334b4c8..57e25e1be 100644
--- a/configure.in
+++ b/configure.in
@@ -5,7 +5,7 @@ AC_INIT(src/main.c)
 AC_PREREQ(2.13)
 AC_CANONICAL_HOST
 
-AM_INIT_AUTOMAKE(mc, 4.5.55)
+AM_INIT_AUTOMAKE(mc, 4.5.99a)
 AM_CONFIG_HEADER(config.h)
 AM_MAINTAINER_MODE