diff --git a/configure.in b/configure.in
index 95f7a880607218bcbb3dc5b57b21b127c6065fbe..64d9d6db7b052ea993308f735ffa9443eb147d68 100644
--- a/configure.in
+++ b/configure.in
@@ -4,7 +4,7 @@ dnl Copyright (c) 2007-2008, The Tor Project, Inc.
 dnl See LICENSE for licensing information
 
 AC_INIT
-AM_INIT_AUTOMAKE(tor, 0.2.3.8-alpha)
+AM_INIT_AUTOMAKE(tor, 0.2.3.8-alpha-dev)
 AM_CONFIG_HEADER(orconfig.h)
 
 AC_CANONICAL_HOST
diff --git a/contrib/tor-mingw.nsi.in b/contrib/tor-mingw.nsi.in
index 49acbcac475ba9ce01a73aa7678df1384a5b044e..8ea9f32b9722df75bd87a2f610f6d4135ca15569 100644
--- a/contrib/tor-mingw.nsi.in
+++ b/contrib/tor-mingw.nsi.in
@@ -8,7 +8,7 @@
 !include "LogicLib.nsh"
 !include "FileFunc.nsh"
 !insertmacro GetParameters
-!define VERSION "0.2.3.8-alpha"
+!define VERSION "0.2.3.8-alpha-dev"
 !define INSTALLER "tor-${VERSION}-win32.exe"
 !define WEBSITE "https://www.torproject.org/"
 !define LICENSE "LICENSE"
diff --git a/src/win32/orconfig.h b/src/win32/orconfig.h
index dce10a820c9fd9f36fdb28afc687c5a28542b0b2..34d7c75b01bc41b63686394f006bcb3489c6426c 100644
--- a/src/win32/orconfig.h
+++ b/src/win32/orconfig.h
@@ -234,7 +234,7 @@
 #define USING_TWOS_COMPLEMENT
 
 /* Version number of package */
-#define VERSION "0.2.3.8-alpha"
+#define VERSION "0.2.3.8-alpha-dev"