diff --git a/Spaces/TutorialSpace.js b/Spaces/TutorialSpace.js
index 37bef72c6..e1232ee10 100644
--- a/Spaces/TutorialSpace.js
+++ b/Spaces/TutorialSpace.js
@@ -700,8 +700,10 @@ function newTutorialSpace() {
     function stop() {
         resetAfterButtonPressed()
         checkForceFocus()
-        tutorialRootNode.payload.uiObject.isPlaying = false
-        tutorialRootNode = undefined
+        if (tutorialRootNode !== undefined) {
+            tutorialRootNode.payload.uiObject.isPlaying = false
+            tutorialRootNode = undefined
+        }
         currentStatus = 'Stopped'
     }