diff --git a/openlp/plugins/presentations/lib/impresscontroller.py b/openlp/plugins/presentations/lib/impresscontroller.py
index 6c360355c..10add26b4 100644
--- a/openlp/plugins/presentations/lib/impresscontroller.py
+++ b/openlp/plugins/presentations/lib/impresscontroller.py
@@ -181,7 +181,7 @@ class ImpressController(PresentationController):
 class ImpressDocument(PresentationDocument):
     def __init__(self, controller, presentation):
         log.debug(u'Init Presentation OpenOffice')
-        PresentationDocument.__init__(controller, presentation)
+        PresentationDocument.__init__(self, controller, presentation)
         self.document = None
         self.presentation = None
         self.control = None
diff --git a/openlp/plugins/presentations/lib/powerpointcontroller.py b/openlp/plugins/presentations/lib/powerpointcontroller.py
index 32d951c0e..93c48e86c 100644
--- a/openlp/plugins/presentations/lib/powerpointcontroller.py
+++ b/openlp/plugins/presentations/lib/powerpointcontroller.py
@@ -104,7 +104,7 @@ class PowerpointController(PresentationController):
 class PowerpointDocument(PresentationDocument):
     def __init__(self, controller, presentation):
         log.debug(u'Init Presentation Powerpoint')
-        PresentationDocument.__init__(controller, presentation)
+        PresentationDocument.__init__(self, controller, presentation)
         self.presentation = None
 
     def load_presentation(self):
diff --git a/openlp/plugins/presentations/lib/pptviewcontroller.py b/openlp/plugins/presentations/lib/pptviewcontroller.py
index 409a0b760..42a12be1d 100644
--- a/openlp/plugins/presentations/lib/pptviewcontroller.py
+++ b/openlp/plugins/presentations/lib/pptviewcontroller.py
@@ -102,7 +102,7 @@ class PptviewController(PresentationController):
 class PptviewDocument(PresentationDocument):
     def __init__(self, controller, presentation):
         log.debug(u'Init Presentation PowerPoint')
-        PresentationDocument.__init__(controller, presentation)
+        PresentationDocument.__init__(self, controller, presentation)
         self.presentation = None
         self.pptid = None
         self.blanked = False