diff --git a/tests/unit/security/key-chain.t.cpp b/tests/unit/security/key-chain.t.cpp
index 1e35aef..94e75a0 100644
--- a/tests/unit/security/key-chain.t.cpp
+++ b/tests/unit/security/key-chain.t.cpp
@@ -425,7 +425,7 @@
 
   const uint32_t expectedSigType = SignatureTypeTlvValue;
   const bool shouldHaveKeyLocator = true;
-  const optional<KeyLocator> expectedKeyLocator = cert.getName().getPrefix(-2);
+  const optional<KeyLocator> expectedKeyLocator = cert.getName();
 
   bool
   verify(const SigningInfo&) const