diff --git a/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/README.adoc b/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/README.adoc
index 5cd47e126..d0099fe53 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/README.adoc
+++ b/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/README.adoc
@@ -24,3 +24,10 @@ Using the AWS command line tools it looks like this:
 aws lambda create-function --function-name Uppercase --role arn:aws:iam::[USERID]:role/service-role/[ROLE] --zip-file fileb://function-sample-aws/target/function-sample-aws-1.0.0.BUILD-SNAPSHOT-aws.jar --handler org.springframework.cloud.function.adapter.aws.SpringBootStreamHandler --description "Spring Cloud Function Adapter Example" --runtime java8 --region us-east-1 --timeout 30 --memory-size 1024 --publish
 ----
 
+The input type for the function in the AWS sample is a Foo with a single property called "value". So you would need this to test it:
+
+----
+{
+  "value": "test"
+}
+----
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