diff --git a/webapp/src/components/modalComponents/calibrationWizard.vue b/webapp/src/components/modalComponents/calibrationWizard.vue
index 55618348..798ee8e5 100644
--- a/webapp/src/components/modalComponents/calibrationWizard.vue
+++ b/webapp/src/components/modalComponents/calibrationWizard.vue
@@ -123,7 +123,7 @@ export default {
 
       // Ask which way the z motor turns, right after the welcome screen but before any
       // other tasks, so the stage is correctly oriented before anything else runs.
-      if (this.thingDescription("stage").title != "DummyStage") {
+      if (this.thingAvailable("stage") && this.thingDescription("stage").title != "DummyStage") {
         tasks.push({
           component: markRaw(singleStepTask),
           props: { stepComponent: zMotorDirectionStep },