add missing header
diff --git a/build.json b/build.json
index c7c640d..413863f 100644
--- a/build.json
+++ b/build.json
@@ -416,6 +416,7 @@
         "include/grpc++/server_context.h",
         "include/grpc++/server_credentials.h",
         "include/grpc++/status.h",
+        "include/grpc++/status_code_enum.h",
         "include/grpc++/stream.h"
       ],
       "headers": [