diff --git a/src/plugins/qt4projectmanager/qt4projectmanagerplugin.cpp b/src/plugins/qt4projectmanager/qt4projectmanagerplugin.cpp
index 7561fb297f5..d0c49307610 100644
--- a/src/plugins/qt4projectmanager/qt4projectmanagerplugin.cpp
+++ b/src/plugins/qt4projectmanager/qt4projectmanagerplugin.cpp
@@ -423,6 +423,7 @@ void Qt4ProjectManagerPlugin::updateBuildFileAction()
         ProjectExplorer::Project *project = session->projectForFile(file);
         m_buildFileAction->setParameter(QFileInfo(file).fileName());
         visible = qobject_cast<Qt4Project *>(project)
+                && node
                 && qobject_cast<Qt4ProFileNode *>(node->projectNode());
 
         enabled = !m_projectExplorer->buildManager()->isBuilding(project);