diff --git a/codegen/sdk-codegen/aws-models/waf-regional.json b/codegen/sdk-codegen/aws-models/waf-regional.json
index b57050e8952f..b69c177ec522 100644
--- a/codegen/sdk-codegen/aws-models/waf-regional.json
+++ b/codegen/sdk-codegen/aws-models/waf-regional.json
@@ -7937,6 +7937,21 @@
               ]
             }
           }
+        ],
+        "smithy.test#smokeTests": [
+          {
+            "id": "ListRulesSuccess",
+            "params": {
+              "Limit": 20
+            },
+            "vendorParams": {
+              "region": "us-east-1"
+            },
+            "vendorParamsShape": "aws.test#AwsVendorParams",
+            "expect": {
+              "success": {}
+            }
+          }
         ]
       }
     },