diff --git a/packages/core/js-client/src/services/__test__/sigService.spec.ts b/packages/core/js-client/src/services/__test__/sigService.spec.ts
index 8cbbc5a6..26315c0b 100644
--- a/packages/core/js-client/src/services/__test__/sigService.spec.ts
+++ b/packages/core/js-client/src/services/__test__/sigService.spec.ts
@@ -75,6 +75,7 @@ describe("Sig service test suite", () => {
       assert(aqua["callSig"]);
       const result = await aqua["callSig"](peer, { sigId: "CustomSig" });
 
+      expect(result).toBeTypeOf("boolean"); // KLUDGE to see result value.
       expect(result).toHaveProperty("success", true);
 
       const isSigCorrect = await customSig.verify({