diff --git a/lib/public/activity/iconsumer.php b/lib/public/Activity/IConsumer.php
similarity index 100%
rename from lib/public/activity/iconsumer.php
rename to lib/public/Activity/IConsumer.php
diff --git a/lib/public/activity/ievent.php b/lib/public/Activity/IEvent.php
similarity index 100%
rename from lib/public/activity/ievent.php
rename to lib/public/Activity/IEvent.php
diff --git a/lib/public/activity/iextension.php b/lib/public/Activity/IExtension.php
similarity index 100%
rename from lib/public/activity/iextension.php
rename to lib/public/Activity/IExtension.php
diff --git a/lib/public/activity/imanager.php b/lib/public/Activity/IManager.php
similarity index 100%
rename from lib/public/activity/imanager.php
rename to lib/public/Activity/IManager.php