diff --git a/src/json-helper.cpp b/src/json-helper.cpp
index a7cc897..78969fc 100644
--- a/src/json-helper.cpp
+++ b/src/json-helper.cpp
@@ -25,22 +25,24 @@
 namespace ndncert {
 
 const JsonSection
-genResponseProbeJson(const Name& identifier, const Name& CaInformation)
+genResponseProbeJson(const Name& identifier, const Name& caInformation)
 {
   JsonSection root;
 
   root.put(JSON_IDNENTIFIER, identifier.toUri());
-  root.put(JSON_CA_INFO, CaInformation.toUri());
+  root.put(JSON_CA_INFO, caInformation.toUri());
 
   return root;
 }
 
 const JsonSection
-genResponseNewJson(const std::string& requestId, const std::list<std::string>& challenges)
+genResponseNewJson(const std::string& requestId, const std::string& status,
+                   const std::list<std::string>& challenges)
 {
   JsonSection root;
   JsonSection challengesSection;
   root.put(JSON_REQUEST_ID, requestId);
+  root.put(JSON_STATUS, status);
 
   for (const auto& entry : challenges) {
     JsonSection challenge;
diff --git a/src/json-helper.hpp b/src/json-helper.hpp
index c34c631..791fc12 100644
--- a/src/json-helper.hpp
+++ b/src/json-helper.hpp
@@ -40,19 +40,20 @@
  *
  * Target JSON format:
  * {
- *   "identifier": "",
- *   "ca-info": ""
+ *   "identifier": "@p identifier",
+ *   "ca-info": "@p caInformation"
  * }
  */
 const JsonSection
-genResponseProbeJson(const Name& identifier, const Name& CaInformation);
+genResponseProbeJson(const Name& identifier, const Name& caInformation);
 
 /**
  * @brief Generate JSON file to response NEW interest
  *
  * Target JSON format:
  * {
- *   "request-id": "",
+ *   "request-id": "@p requestId",
+ *   "status": "@p status",
  *   "challenges": [
  *     {
  *       "challenge-type": ""
@@ -65,7 +66,8 @@
  * }
  */
 const JsonSection
-genResponseNewJson(const std::string& requestId, const std::list<std::string>& challenges);
+genResponseNewJson(const std::string& requestId, const std::string& status,
+                   const std::list<std::string>& challenges);
 
 /**
  * @brief Generate JSON file to response _SELECT, _VALIDATE, and _STATUS interest
@@ -98,8 +100,8 @@
  *
  * Target JSON format:
  * {
- *   "status": "",
- *   "error-info": ""
+ *   "status": "error",
+ *   "error-info": "@p errorInfo"
  * }
  */
 const JsonSection
diff --git a/tests/unit-tests/json-helper.t.cpp b/tests/unit-tests/json-helper.t.cpp
index 61a74e5..266d3ee 100644
--- a/tests/unit-tests/json-helper.t.cpp
+++ b/tests/unit-tests/json-helper.t.cpp
@@ -40,9 +40,10 @@
   std::list<std::string> challenges;
   challenges.push_back("PIN");
   challenges.push_back("EMAIL");
-  auto result = genResponseNewJson("598234759", challenges);
+  auto result = genResponseNewJson("598234759", "wait-selection", challenges);
 
   BOOST_CHECK_EQUAL(result.get<std::string>(JSON_REQUEST_ID), "598234759");
+  BOOST_CHECK_EQUAL(result.get<std::string>(JSON_STATUS), "wait-selection");
   auto child = result.get_child(JSON_CHALLENGES);
   auto it = child.begin();
   BOOST_CHECK_EQUAL(it->second.get<std::string>(JSON_CHALLENGE_TYPE), "PIN");