diff --git a/types/aws-lambda/aws-lambda-tests.ts b/types/aws-lambda/aws-lambda-tests.ts
index edc2015616..0639988ef7 100644
--- a/types/aws-lambda/aws-lambda-tests.ts
+++ b/types/aws-lambda/aws-lambda-tests.ts
@@ -1019,6 +1019,11 @@ const cloudFrontRequestHandler: AWSLambda.CloudFrontRequestHandler = (event: AWS
 
 const cloudFrontResponseHandler: AWSLambda.CloudFrontResponseHandler = (event: AWSLambda.CloudFrontResponseEvent, context: AWSLambda.Context, cb: AWSLambda.CloudFrontResponseCallback) => { };
 
+const cloudFrontHeaders: AWSLambda.CloudFrontHeaders = {
+    'content-type': [{ value: 'text/plain' }],
+    'x-foo-bar': [{ key: 'X-Foo-Bar', value: 'example' }]
+};
+
 const customAuthorizerHandler: AWSLambda.CustomAuthorizerHandler = (event: AWSLambda.CustomAuthorizerEvent, context: AWSLambda.Context, cb: AWSLambda.CustomAuthorizerCallback) => { };
 
 interface CustomEvent { eventString: string; eventBool: boolean; }
diff --git a/types/aws-lambda/index.d.ts b/types/aws-lambda/index.d.ts
index fc9b0e4532..91e5de7d3e 100644
--- a/types/aws-lambda/index.d.ts
+++ b/types/aws-lambda/index.d.ts
@@ -734,7 +734,7 @@ export type CodePipelineCloudWatchEvent =
  */
 export interface CloudFrontHeaders {
     [name: string]: Array<{
-        key: string;
+        key?: string;
         value: string;
     }>;
 }