diff --git a/test/CloudNative.CloudEvents.UnitTests/Kafka/KafkaTest.cs b/test/CloudNative.CloudEvents.UnitTests/Kafka/KafkaTest.cs
index b8bcc0c..afe37f4 100644
--- a/test/CloudNative.CloudEvents.UnitTests/Kafka/KafkaTest.cs
+++ b/test/CloudNative.CloudEvents.UnitTests/Kafka/KafkaTest.cs
@@ -132,7 +132,7 @@ public void KafkaBinaryMessageTest()
         [Theory]
         [InlineData(MediaTypeNames.Application.Octet, new byte[0])]
         [InlineData(MediaTypeNames.Application.Json, null)]
-        [InlineData(MediaTypeNames.Application.Xml, "")]
+        [InlineData(MediaTypeNames.Application.Xml, new byte[0])]
         [InlineData(MediaTypeNames.Text.Plain, "")]
         [InlineData(null, null)]
         public void KafkaBinaryMessageTombstoneTest(string? contentType, object? expectedDecodedResult)