diff --git a/src/plugins/qmlprofiler/qmlprofilertool.cpp b/src/plugins/qmlprofiler/qmlprofilertool.cpp
index 13f87b3889b..2e48a9882bb 100644
--- a/src/plugins/qmlprofiler/qmlprofilertool.cpp
+++ b/src/plugins/qmlprofiler/qmlprofilertool.cpp
@@ -289,7 +289,7 @@ void QmlProfilerTool::updateRunActions()
     } else {
         QString tooltip = tr("Start QML Profiler analysis.");
         bool canRun = ProjectExplorerPlugin::canRunStartupProject
-                (ProjectExplorer::Constants::QML_PROFILER_RUN_MODE, &whyNot);
+                (ProjectExplorer::Constants::QML_PROFILER_RUN_MODE, &tooltip);
         d->m_startAction->setToolTip(tooltip);
         d->m_startAction->setEnabled(canRun);
         d->m_stopAction->setEnabled(false);