--- a/kcms/autostart/autostartmodel.cpp	2021-02-15 13:23:38.000000000 +0100
+++ b/kcms/autostart/autostartmodel.cpp	2021-02-17 07:45:17.126561873 +0100
@@ -17,6 +17,7 @@
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA          *
  ***************************************************************************/
 #include "autostartmodel.h"
+#include <optional>
 
 #include <KConfigGroup>
 #include <KDesktopFile>