diff --git a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
index d0a6e397e1e..16e3c463e32 100644
--- a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
+++ b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
@@ -21079,6 +21079,14 @@
           "cn-northwest-1" : { }
         }
       },
+      "acm-pca" : {
+        "defaults" : {
+          "protocols" : [ "https" ]
+        },
+        "endpoints" : {
+          "cn-north-1" : { }
+        }
+      },
       "airflow" : {
         "endpoints" : {
           "cn-north-1" : { },