diff --git a/src/agents/pi-embedded-error-observation.test.ts b/src/agents/pi-embedded-error-observation.test.ts
index 3b1d32d5875..9eeb3ba8d18 100644
--- a/src/agents/pi-embedded-error-observation.test.ts
+++ b/src/agents/pi-embedded-error-observation.test.ts
@@ -187,7 +187,7 @@ describe("buildApiErrorObservationFields", () => {
 
     expect(observed).toMatchObject({
       httpCode: "401",
-      providerRuntimeFailureKind: "unknown",
+      providerRuntimeFailureKind: "unclassified",
     });
   });
 });