diff --git a/tests/unit-tests/security/test-signature-sha256-ecdsa.cpp b/tests/unit-tests/security/test-signature-sha256-ecdsa.cpp
index 34f25bf..cebf9ed 100644
--- a/tests/unit-tests/security/test-signature-sha256-ecdsa.cpp
+++ b/tests/unit-tests/security/test-signature-sha256-ecdsa.cpp
@@ -78,6 +78,11 @@
                                 sigInfoBlock.wire() + sigInfoBlock.size(),
                                 encodeSigInfoBlock.wire(),
                                 encodeSigInfoBlock.wire() + encodeSigInfoBlock.size());
+
+  sig.setKeyLocator(Name("/test/another/key/locator"));
+
+  const Block& encodeSigInfoBlock2 = sig.getInfo();
+  BOOST_CHECK(sigInfoBlock != encodeSigInfoBlock2);
 }
 
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/tests/unit-tests/security/test-signature-sha256-rsa.cpp b/tests/unit-tests/security/test-signature-sha256-rsa.cpp
index cd717d7..2fd0c3a 100644
--- a/tests/unit-tests/security/test-signature-sha256-rsa.cpp
+++ b/tests/unit-tests/security/test-signature-sha256-rsa.cpp
@@ -83,6 +83,11 @@
                                 sigInfoBlock.wire() + sigInfoBlock.size(),
                                 encodeSigInfoBlock.wire(),
                                 encodeSigInfoBlock.wire() + encodeSigInfoBlock.size());
+
+  sig.setKeyLocator(Name("/test/another/key/locator"));
+
+  const Block& encodeSigInfoBlock2 = sig.getInfo();
+  BOOST_CHECK(sigInfoBlock != encodeSigInfoBlock2);
 }
 
 BOOST_AUTO_TEST_SUITE_END()