diff --git a/editor.planx.uk/src/pages/FlowEditor/lib/store/preview.ts b/editor.planx.uk/src/pages/FlowEditor/lib/store/preview.ts
index 224cd05337..ecf33cf7df 100644
--- a/editor.planx.uk/src/pages/FlowEditor/lib/store/preview.ts
+++ b/editor.planx.uk/src/pages/FlowEditor/lib/store/preview.ts
@@ -639,8 +639,13 @@ export const previewStore: StateCreator<
   },
 
   requestedFiles: () => {
+    // Importing PASSPORT_REQUESTED_FILES_KEY causes tests to fail - possible circular dependency issue?
+    // Repeating it here so find and replace still points to this hardcoded value
+    const PASSPORT_REQUESTED_FILES_KEY = "_requiredFiles";
+
     const { computePassport } = get();
-    const currentRequestedFiles = computePassport().data?._requestedFiles;
+    const currentRequestedFiles =
+      computePassport().data?.[PASSPORT_REQUESTED_FILES_KEY];
     const emptyFileList = { required: [], recommended: [], optional: [] };
 
     return currentRequestedFiles || emptyFileList;