diff --git a/configs/config-2.3.0.yml b/configs/config-2.3.0.yml
index d0dd52f..1dda812 100644
--- a/configs/config-2.3.0.yml
+++ b/configs/config-2.3.0.yml
@@ -2166,14 +2166,15 @@ mobase:
 
   ISaveGameInfoWidget:
     __doc__: Base class for a save game info widget.
-    __abstract__: true
+    # Class not abstract because it conflicts with Qt metaclass:
+    # __abstract__: true
     __init__:
       args:
         parent: Parent widget.
     _widget:
-      abstract: false
       returns: The underlying `QWidget`.
     setSave:
+      abstract: true
       __doc__: Set the save file to display in this widget.
       args:
         save: Path to the save file.
diff --git a/stubs/2.3.0/mobase.pyi b/stubs/2.3.0/mobase.pyi
index efcde6d..87a38a8 100644
--- a/stubs/2.3.0/mobase.pyi
+++ b/stubs/2.3.0/mobase.pyi
@@ -2874,7 +2874,7 @@ class ISaveGame:
         """
         ...
 
-class ISaveGameInfoWidget(abc.ABC, PyQt5.QtWidgets.QWidget):
+class ISaveGameInfoWidget(PyQt5.QtWidgets.QWidget):
     """
     Base class for a save game info widget.
     """