diff --git a/doc/interop-test-descriptions.md b/doc/interop-test-descriptions.md
index 96d1f2bd7526c3421e867ed94ba9986a10f2b358..da3b97674438b5f36d0b3fe6512f5b0f70a4d156 100644
--- a/doc/interop-test-descriptions.md
+++ b/doc/interop-test-descriptions.md
@@ -716,7 +716,9 @@ Procedure:
 
     ```
     {
-      response_size: 314159
+      response_parameters:{
+        size: 314159
+      }
       payload:{
         body: 271828 bytes of zeros
       }