diff --git a/packages/builder/src/components/automation/AutomationBuilder/FlowChart/TestDataModal.svelte b/packages/builder/src/components/automation/AutomationBuilder/FlowChart/TestDataModal.svelte
index cce9c14a23..d05c8fa326 100644
--- a/packages/builder/src/components/automation/AutomationBuilder/FlowChart/TestDataModal.svelte
+++ b/packages/builder/src/components/automation/AutomationBuilder/FlowChart/TestDataModal.svelte
@@ -18,7 +18,7 @@
   // get the outputs so we can define the fields
 
   // check to see if there is existing test data in the store
-  let testData = $automationStore.selectedAutomation.automation.testData
+  $: testData = $automationStore.selectedAutomation.automation.testData
   // Check the schema to see if required fields have been entered
   $: isError = !trigger.schema.outputs.required.every(
     required => testData[required]