diff --git a/mantidimaging/gui/widgets/auto_colour_menu/auto_color_menu.py b/mantidimaging/gui/widgets/auto_colour_menu/auto_color_menu.py
index 3fe21f3e2b9..9aca633171c 100644
--- a/mantidimaging/gui/widgets/auto_colour_menu/auto_color_menu.py
+++ b/mantidimaging/gui/widgets/auto_colour_menu/auto_color_menu.py
@@ -22,6 +22,7 @@ class AutoColorMenu(ABC, metaclass=_metaclass_sip_abc):
     """
 
     def __init__(self) -> None:
+        super().__init__()
         self.auto_color_action: QAction | None = None
 
     @property