diff --git a/openlp/core/ui/lib/__init__.py b/openlp/core/ui/lib/__init__.py
index d4e21e7bd..6cdeac8a6 100644
--- a/openlp/core/ui/lib/__init__.py
+++ b/openlp/core/ui/lib/__init__.py
@@ -29,3 +29,5 @@ from .wizard import OpenLPWizard, WizardStrings
 from .mediadockmanager import MediaDockManager
 from .listpreviewwidget import ListPreviewWidget
 
+__all__ = ['ColorButton', 'ListPreviewWidget', 'ListWidgetWithDnD', 'OpenLPToolbar', 'OpenLPDockWidget',
+           'OpenLPWizard', 'WizardStrings', 'MediaDockManager', 'ListPreviewWidget']