diff --git a/hg b/hg
index 5d8553352d2ee495b48e76cc9285173ac7e5ecaf_aGc=..0a28dfe59f8fab54a5118c5be4f40da34a53cdb7_aGc= 100644
--- a/hg
+++ b/hg
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 #
 # mercurial - a minimal scalable distributed SCM
-# v0.5 "katje"
+# v0.5b "katje"
 #
 # Copyright 2005 Matt Mackall <mpm@selenic.com>
 #
diff --git a/setup.py b/setup.py
index 5d8553352d2ee495b48e76cc9285173ac7e5ecaf_c2V0dXAucHk=..0a28dfe59f8fab54a5118c5be4f40da34a53cdb7_c2V0dXAucHk= 100644
--- a/setup.py
+++ b/setup.py
@@ -16,7 +16,7 @@
         install_data.finalize_options(self)
 
 setup(name='mercurial',
-      version='0.5',
+      version='0.5b',
       author='Matt Mackall',
       author_email='mpm@selenic.com',
       url='http://selenic.com/mercurial',