diff --git a/src/app/options.h b/src/app/options.h
index e82e7a4..2aee1e3 100644
--- a/src/app/options.h
+++ b/src/app/options.h
@@ -10,7 +10,7 @@ typedef std::queue<std::string> ArgQueue;
 static inline std::string safePop(ArgQueue &args)
 {
   if(args.empty()) {
-    fprintf(stderr, "unexpected end of command line\n");
+    fprintf(stderr, "Unexpected end of command line while parsing argument\n");
     exit(1);
   }
 
diff --git a/src/app/report_json.cpp b/src/app/report_json.cpp
index 040af17..d8417f1 100644
--- a/src/app/report_json.cpp
+++ b/src/app/report_json.cpp
@@ -146,6 +146,7 @@ bool checkComplianceJsonSpec(Box const &file, SpecDesc const *spec, Json::Array
   bool fail = false;
   auto root = std::make_unique<Json::Object>();
   root->content.push_back(std::make_unique<Json::Data>("specification", spec->name));
+  root->content.push_back(std::make_unique<Json::Data>("version", spec->caption));
   auto successArray = std::make_unique<Json::Array>("successful_checks");
   auto uncheckedArray = std::make_unique<Json::Array>("unchecked");
   auto errorArray = std::make_unique<Json::Array>("errors");