diff --git a/sdk/greengrass/greengrass-client/src/event-stream-rpc-java/model/software/amazon/awssdk/aws/greengrass/model/MessageContext.java b/sdk/greengrass/greengrass-client/src/event-stream-rpc-java/model/software/amazon/awssdk/aws/greengrass/model/MessageContext.java
index a554d3ec9..ef8c4771f 100644
--- a/sdk/greengrass/greengrass-client/src/event-stream-rpc-java/model/software/amazon/awssdk/aws/greengrass/model/MessageContext.java
+++ b/sdk/greengrass/greengrass-client/src/event-stream-rpc-java/model/software/amazon/awssdk/aws/greengrass/model/MessageContext.java
@@ -15,6 +15,9 @@
 import java.util.Optional;
 import software.amazon.awssdk.eventstreamrpc.model.EventStreamJsonMessage;
 
+/**
+ * The context is ignored if used in PublishMessage.
+ */
 public class MessageContext implements EventStreamJsonMessage {
   public static final String APPLICATION_MODEL_TYPE = "aws.greengrass#MessageContext";