diff --git a/src/webengine/api/qquickwebenginescript.cpp b/src/webengine/api/qquickwebenginescript.cpp
index 71dad70..1f8a1d3 100644
--- a/src/webengine/api/qquickwebenginescript.cpp
+++ b/src/webengine/api/qquickwebenginescript.cpp
@@ -233,7 +233,7 @@ void QQuickWebEngineScript::timerEvent(QTimerEvent *e)
     if (!d->m_controllerHost)
         return;
     d->m_basicTimer.stop();
-    d->m_controllerHost->addUserScript(d->coreScript, d->m_adapter);
+    d->m_controllerHost->addUserScript(d->coreScript, d->m_adapter.data());
 }
 
 void QQuickWebEngineScriptPrivate::bind(QtWebEngineCore::UserScriptControllerHost *scriptController, QtWebEngineCore::WebContentsAdapter *adapter)
@@ -254,7 +254,7 @@ void QQuickWebEngineScriptPrivate::aboutToUpdateUnderlyingScript()
 {
     Q_Q(QQuickWebEngineScript);
     if (m_controllerHost)
-        m_controllerHost->removeUserScript(coreScript, m_adapter);
+        m_controllerHost->removeUserScript(coreScript, m_adapter.data());
    // Defer updates to the next event loop
    m_basicTimer.start(0, q);
 }
diff --git a/src/webengine/api/qquickwebenginescript_p_p.h b/src/webengine/api/qquickwebenginescript_p_p.h
index 133e2dc..2cb4fab 100644
--- a/src/webengine/api/qquickwebenginescript_p_p.h
+++ b/src/webengine/api/qquickwebenginescript_p_p.h
@@ -50,6 +50,7 @@
 
 #include "qquickwebenginescript_p.h"
 
+#include <QSharedData>
 #include <QtCore/QBasicTimer>
 #include "user_script.h"
 #include "web_contents_adapter.h"
@@ -71,7 +72,7 @@ public:
     QtWebEngineCore::UserScript coreScript;
     QBasicTimer m_basicTimer;
     QtWebEngineCore::UserScriptControllerHost *m_controllerHost;
-    QtWebEngineCore::WebContentsAdapter *m_adapter;
+    QExplicitlySharedDataPointer<QtWebEngineCore::WebContentsAdapter> m_adapter;
     QUrl m_sourceUrl;
 
 private: