diff --git a/test/tap/LoggingEvent-test.js b/test/tap/LoggingEvent-test.js
index 4fed49c..d7596d5 100644
--- a/test/tap/LoggingEvent-test.js
+++ b/test/tap/LoggingEvent-test.js
@@ -106,6 +106,7 @@ test('LoggingEvent', (batch) => {
     t.equal(event2.lineNumber, undefined);
     t.equal(event2.columnNumber, undefined);
     t.equal(event2.callStack, undefined);
+    t.equal(event.functionName, undefined);
     t.equal(event2.className, undefined);
     t.equal(event2.functionAlias, undefined);
     t.equal(event2.callerName, undefined);