diff --git a/srcs/libs/protocol/protocol.c b/srcs/libs/protocol/protocol.c
index c024e91..d0044d7 100644
--- a/srcs/libs/protocol/protocol.c
+++ b/srcs/libs/protocol/protocol.c
@@ -30,10 +30,14 @@ typedef struct {
 } JSON_SCHEMA_CTX, *PJSON_SCHEMA_CTX;
 
 static JSON_SCHEMA_CTX g_json_sch[] = {
-    {"{\"type\":\"object\",\"required\":[\"ver\"],\"properties\":{\"ver\":{\"type\":\"integer\"}}}", "Incorrect field [ver]"},
-    {"{\"type\":\"object\",\"required\":[\"cryptoType\"],\"properties\":{\"cryptoType\":{\"type\":\"integer\",\"minimum\":0,\"maximum\":4}}}", "Incorrect field [cryptoType]"},
-    {"{\"type\":\"object\",\"required\":[\"timeStamp\"],\"properties\":{\"timeStamp\":{\"type\":\"integer\"}}}", "Incorrect field [timeStamp]"},
-    {"{\"type\":\"object\",\"required\":[\"msgContent\"]}", "Missing required field [msgContent]"},
+        {"{\"type\":\"object\",\"required\":[\"ver\"]}",                    "Missing required field [ver]"           },
+        {"{\"type\":\"object\",\"required\":[\"cryptoType\"]}",             "Missing required field [cryptoType]"    },
+        {"{\"type\":\"object\",\"required\":[\"timeStamp\"]}",              "Missing required field [timeStamp]"     },
+        {"{\"type\":\"object\",\"required\":[\"msgContent\"]}",             "Missing required field [msgContent]"    },
+        {"{\"properties\":{\"ver\":{\"type\":\"integer\"}}}",               "[ver] should be an integer value"       },
+        {"{\"properties\":{\"cryptoType\":{\"type\":\"integer\"}}}",        "[cryptoType] should be an integer value"},
+        {"{\"properties\":{\"cryptoType\":{\"minimum\":0,\"maximum\":4}}}", "Undefined type in field [cryptoType]"   },
+        {"{\"properties\":{\"timeStamp\":{\"type\":\"integer\"}}}",         "[timeStamp] should be an integer value" },
 };
 
 const char *proto_schema_validation(const char *pJsonStr) {