--- a/eric7/QScintilla/Editor.py Wed Jul 28 17:01:12 2021 +0200 +++ b/eric7/QScintilla/Editor.py Wed Jul 28 17:02:19 2021 +0200 @@ -4730,8 +4730,10 @@ self.setAutoCompletionSource( QsciScintilla.AutoCompletionSource.AcsAll) - self.maxLines = Preferences.getEditor("AutoCompletionMaxLines") - self.maxChars = Preferences.getEditor("AutoCompletionMaxChars") + self.setAutoCompletionWidgetSize( + Preferences.getEditor("AutoCompletionMaxChars"), + Preferences.getEditor("AutoCompletionMaxLines") + ) def __setCallTips(self): """