diff --git a/understand-anything-plugin/packages/core/src/persistence/persistence.test.ts b/understand-anything-plugin/packages/core/src/persistence/persistence.test.ts
index 857e6b6..f376159 100644
--- a/understand-anything-plugin/packages/core/src/persistence/persistence.test.ts
+++ b/understand-anything-plugin/packages/core/src/persistence/persistence.test.ts
@@ -94,7 +94,7 @@ describe("persistence", () => {
     });
 
     it("should throw error when loading a fatally invalid graph", () => {
-      const invalidGraph = { ...sampleGraph, nodes: "not-an-array" };
+      const invalidGraph = { ...sampleGraph, project: null };
       saveGraph(tempDir, invalidGraph as unknown as KnowledgeGraph);
 
       expect(() => {