diff --git a/src/calibre/gui2/viewer2/web_view.py b/src/calibre/gui2/viewer2/web_view.py
index 9f97fd92f6..8c2f3d873b 100644
--- a/src/calibre/gui2/viewer2/web_view.py
+++ b/src/calibre/gui2/viewer2/web_view.py
@@ -170,7 +170,9 @@ class ViewerBridge(Bridge):
 class WebPage(QWebEnginePage):
 
     def __init__(self, parent):
-        QWebEnginePage.__init__(self, create_profile(), parent)
+        profile = create_profile()
+        QWebEnginePage.__init__(self, profile, parent)
+        profile.setParent(self)
         secure_webengine(self, for_viewer=True)
         self.bridge = ViewerBridge(self)