diff --git a/src/PlanView/PlanView.qml b/src/PlanView/PlanView.qml
index bf1b07c38d102712956afdd3be336b20d0001b86..442385078e1d019e57ec977bb0b54fe0d3f233fc 100644
--- a/src/PlanView/PlanView.qml
+++ b/src/PlanView/PlanView.qml
@@ -37,6 +37,9 @@ QGCView {
 
     property bool planControlColapsed: false
 
+    ///< This property is used to determine dirty state for prompting on QGC shutdown
+    readonly property bool dirty: _planMasterController.dirty
+
     readonly property int   _decimalPlaces:             8
     readonly property real  _horizontalMargin:          ScreenTools.defaultFontPixelWidth  * 0.5
     readonly property real  _margin:                    ScreenTools.defaultFontPixelHeight * 0.5
diff --git a/src/ui/MainWindowInner.qml b/src/ui/MainWindowInner.qml
index 4a8af1113edf204397dd116f263e5bb7c5655c07..2c9e5819c9cf7e696d789f4cf6e9d08df883a3d1 100644
--- a/src/ui/MainWindowInner.qml
+++ b/src/ui/MainWindowInner.qml
@@ -164,7 +164,7 @@ Item {
         onYes: activeConnectionsCloseDialog.check()
 
         function check() {
-            if (planViewLoader.item && planViewLoader.item.syncNeeded) {
+            if (planViewLoader.item && planViewLoader.item.dirty) {
                 unsavedMissionCloseDialog.open()
             } else {
                 activeConnectionsCloseDialog.check()