diff --git a/types/aws-lambda/aws-lambda-tests.ts b/types/aws-lambda/aws-lambda-tests.ts
index 1296bd54e4..042ae80956 100644
--- a/types/aws-lambda/aws-lambda-tests.ts
+++ b/types/aws-lambda/aws-lambda-tests.ts
@@ -530,6 +530,7 @@ strOrUndefined = cloudformationCustomResourceResponse.Reason;
 str = cloudformationCustomResourceResponse.RequestId;
 str = cloudformationCustomResourceResponse.StackId;
 str = cloudformationCustomResourceResponse.Status;
+boolOrUndefined = cloudformationCustomResourceResponse.NoEcho;
 
 /* ScheduledEvent */
 str = scheduledEvent.account;
diff --git a/types/aws-lambda/index.d.ts b/types/aws-lambda/index.d.ts
index f6a1aadc37..b3982f2178 100644
--- a/types/aws-lambda/index.d.ts
+++ b/types/aws-lambda/index.d.ts
@@ -383,6 +383,7 @@ export interface CloudFormationCustomResourceResponseCommon {
     Data?: {
         [Key: string]: any;
     };
+    NoEcho?: boolean;
 }
 
 export interface CloudFormationCustomResourceSuccessResponse extends CloudFormationCustomResourceResponseCommon {