diff --git a/MANIFEST.in b/MANIFEST.in
index 2a2dc6c..25324e3 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,6 +1,6 @@
 recursive-include doc *.html *.css *.txt *.js *.png *.py Makefile *.rst *.mako
 recursive-include examples *.py *.xml *.mako *.myt *.kid *.tmpl
-recursive-include test *.py *.html *.mako
+recursive-include test *.py *.html *.mako *.cfg
 
 include README* AUTHORS LICENSE CHANGES* tox.ini
 
diff --git a/setup.cfg b/setup.cfg
index 3ebc363..a824e19 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -70,6 +70,7 @@ console_scripts=
     mako-render = mako.cmd:cmdline
 
 [egg_info]
+tag_build = dev
 
 [tool:pytest]
 addopts= --tb native -v -r fxX -W error