Index: sources/gui/qml/pages/treatment/TreatmentStack.qml
===================================================================
diff -u -rea51c0546c7061d225e7b9d8b754554c65f0d1b1 -r57ea732311e6f4c746974f5a52316f63dec23ca8
--- sources/gui/qml/pages/treatment/TreatmentStack.qml	(.../TreatmentStack.qml)	(revision ea51c0546c7061d225e7b9d8b754554c65f0d1b1)
+++ sources/gui/qml/pages/treatment/TreatmentStack.qml	(.../TreatmentStack.qml)	(revision 57ea732311e6f4c746974f5a52316f63dec23ca8)
@@ -148,7 +148,7 @@
 
         onOpened                : vTreatmentVitals.doTimerStop() // Can't be moved to C++, and has to be handled here because it can manually being opened by the user
 
-        onClosed                : {
+        onClosed                : (vQuit) => {
             if ( ! vQuit )
                 vTreatmentVitals.doTimerStart()
         }