diff --git a/src/dolphinmainwindow.cpp b/src/dolphinmainwindow.cpp
index fb6da0b4ac..636a8e1a96 100644
--- a/src/dolphinmainwindow.cpp
+++ b/src/dolphinmainwindow.cpp
@@ -849,7 +849,7 @@ void DolphinMainWindow::showFilterBar()
 
 void DolphinMainWindow::toggleFilterBar()
 {
-    bool checked = !m_activeViewContainer->isFilterBarVisible();
+    const bool checked = !m_activeViewContainer->isFilterBarVisible();
     m_activeViewContainer->setFilterBarVisible(checked);
 
     QAction* toggleFilterBarAction = actionCollection()->action(QStringLiteral("toggle_filter"));