diff --git a/oslo_middleware/_i18n.py b/oslo_middleware/_i18n.py
index 2025741..f9bbda1 100644
--- a/oslo_middleware/_i18n.py
+++ b/oslo_middleware/_i18n.py
@@ -19,7 +19,7 @@ See http://docs.openstack.org/developer/oslo.i18n/usage.html
 import oslo_i18n
 
 
-_translators = oslo_i18n.TranslatorFactory(domain='oslo.middleware')
+_translators = oslo_i18n.TranslatorFactory(domain='oslo_middleware')
 
 # The primary translation function using the well-known name "_"
 _ = _translators.primary
diff --git a/oslo.middleware/locale/de/LC_MESSAGES/oslo.middleware-log-error.po b/oslo_middleware/locale/de/LC_MESSAGES/oslo_middleware-log-error.po
similarity index 100%
rename from oslo.middleware/locale/de/LC_MESSAGES/oslo.middleware-log-error.po
rename to oslo_middleware/locale/de/LC_MESSAGES/oslo_middleware-log-error.po
diff --git a/oslo.middleware/locale/de/LC_MESSAGES/oslo.middleware.po b/oslo_middleware/locale/de/LC_MESSAGES/oslo_middleware.po
similarity index 100%
rename from oslo.middleware/locale/de/LC_MESSAGES/oslo.middleware.po
rename to oslo_middleware/locale/de/LC_MESSAGES/oslo_middleware.po
diff --git a/oslo.middleware/locale/en_GB/LC_MESSAGES/oslo.middleware-log-error.po b/oslo_middleware/locale/en_GB/LC_MESSAGES/oslo_middleware-log-error.po
similarity index 100%
rename from oslo.middleware/locale/en_GB/LC_MESSAGES/oslo.middleware-log-error.po
rename to oslo_middleware/locale/en_GB/LC_MESSAGES/oslo_middleware-log-error.po
diff --git a/oslo.middleware/locale/en_GB/LC_MESSAGES/oslo.middleware.po b/oslo_middleware/locale/en_GB/LC_MESSAGES/oslo_middleware.po
similarity index 100%
rename from oslo.middleware/locale/en_GB/LC_MESSAGES/oslo.middleware.po
rename to oslo_middleware/locale/en_GB/LC_MESSAGES/oslo_middleware.po
diff --git a/oslo.middleware/locale/fr/LC_MESSAGES/oslo.middleware-log-error.po b/oslo_middleware/locale/fr/LC_MESSAGES/oslo_middleware-log-error.po
similarity index 100%
rename from oslo.middleware/locale/fr/LC_MESSAGES/oslo.middleware-log-error.po
rename to oslo_middleware/locale/fr/LC_MESSAGES/oslo_middleware-log-error.po
diff --git a/oslo.middleware/locale/fr/LC_MESSAGES/oslo.middleware.po b/oslo_middleware/locale/fr/LC_MESSAGES/oslo_middleware.po
similarity index 100%
rename from oslo.middleware/locale/fr/LC_MESSAGES/oslo.middleware.po
rename to oslo_middleware/locale/fr/LC_MESSAGES/oslo_middleware.po
diff --git a/oslo.middleware/locale/oslo.middleware-log-error.pot b/oslo_middleware/locale/oslo_middleware-log-error.pot
similarity index 100%
rename from oslo.middleware/locale/oslo.middleware-log-error.pot
rename to oslo_middleware/locale/oslo_middleware-log-error.pot
diff --git a/oslo.middleware/locale/oslo.middleware-log-warning.pot b/oslo_middleware/locale/oslo_middleware-log-warning.pot
similarity index 100%
rename from oslo.middleware/locale/oslo.middleware-log-warning.pot
rename to oslo_middleware/locale/oslo_middleware-log-warning.pot
diff --git a/oslo.middleware/locale/oslo.middleware.pot b/oslo_middleware/locale/oslo_middleware.pot
similarity index 100%
rename from oslo.middleware/locale/oslo.middleware.pot
rename to oslo_middleware/locale/oslo_middleware.pot
diff --git a/setup.cfg b/setup.cfg
index f006941..87be3b2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -53,18 +53,18 @@ all_files = 1
 upload-dir = doc/build/html
 
 [compile_catalog]
-directory = oslo.middleware/locale
-domain = oslo.middleware
+directory = oslo_middleware/locale
+domain = oslo_middleware
 
 [update_catalog]
-domain = oslo.middleware
-output_dir = oslo.middleware/locale
-input_file = oslo.middleware/locale/oslo.middleware.pot
+domain = oslo_middleware
+output_dir = oslo_middleware/locale
+input_file = oslo_middleware/locale/oslo_middleware.pot
 
 [extract_messages]
 keywords = _ gettext ngettext l_ lazy_gettext
 mapping_file = babel.cfg
-output_file = oslo.middleware/locale/oslo.middleware.pot
+output_file = oslo_middleware/locale/oslo_middleware.pot
 
 [pbr]
 warnerrors = True