diff --git a/moto/cloudformation/responses.py b/moto/cloudformation/responses.py
index 4267a6e4..1e4b7376 100644
--- a/moto/cloudformation/responses.py
+++ b/moto/cloudformation/responses.py
@@ -20,7 +20,7 @@ class CloudFormationResponse(BaseResponse):
         stack_body = {
             'CreateStackResponse': {
                 'CreateStackResult': {
-                    'StackId': stack.name,
+                    'StackId': stack.stack_id,
                 }
             }
         }