diff --git a/openlp/core/ui/slidecontroller.py b/openlp/core/ui/slidecontroller.py
index 062a8440f..f706dd929 100644
--- a/openlp/core/ui/slidecontroller.py
+++ b/openlp/core/ui/slidecontroller.py
@@ -1245,7 +1245,7 @@ class SlideController(DisplayController, RegistryProperties):
         if event.timerId() == self.timer_id:
             self.on_slide_selected_next(self.play_slides_loop.isChecked())
 
-    def on_edit_song(self):
+    def on_edit_song(self, field=None):
         """
         From the preview display requires the service Item to be editied
         """
@@ -1254,7 +1254,7 @@ class SlideController(DisplayController, RegistryProperties):
         if new_item:
             self.add_service_item(new_item)
 
-    def on_preview_add_to_service(self):
+    def on_preview_add_to_service(self, field=None):
         """
         From the preview display request the Item to be added to service
         """