--- a/src/eric7/QtHelpInterface/HelpTocWidget.py	Mon May 15 11:49:07 2023 +0200
+++ b/src/eric7/QtHelpInterface/HelpTocWidget.py	Mon May 15 14:56:34 2023 +0200
@@ -51,6 +51,7 @@
         self.__tocWidget = self.__engine.contentWidget()
         self.__tocWidget.setContextMenuPolicy(Qt.ContextMenuPolicy.CustomContextMenu)
         self.__tocWidget.setSortingEnabled(True)
+        self.__tocWidget.setExpandsOnDoubleClick(False)
 
         self.__layout = QVBoxLayout(self)
         if internal: