diff --git a/src/plugins/debugger/qml/qmlcppengine.cpp b/src/plugins/debugger/qml/qmlcppengine.cpp
index a678a71ea35..910c6524396 100644
--- a/src/plugins/debugger/qml/qmlcppengine.cpp
+++ b/src/plugins/debugger/qml/qmlcppengine.cpp
@@ -467,7 +467,7 @@ void QmlCppEngine::slaveEngineStateChanged
     (DebuggerEngine *slaveEngine, const DebuggerState newState)
 {
     DebuggerEngine *otherEngine = (slaveEngine == m_cppEngine)
-         ? m_qmlEngine : m_cppEngine;
+         ? m_qmlEngine.data() : m_cppEngine.data();
 
     QTC_ASSERT(otherEngine, return);
     QTC_CHECK(otherEngine != slaveEngine);