diff --git a/src/tools/dumpnbt.cpp b/src/tools/dumpnbt.cpp
index d28f098..c5a5c9d 100644
--- a/src/tools/dumpnbt.cpp
+++ b/src/tools/dumpnbt.cpp
@@ -25,6 +25,7 @@
 #define EXIT_USAGE 2
 #define EXIT_UNIMPLEMENTED 3
 
+
 int main(int argc, char* argv[]) {
     std::vector<CLI::Flag> flags;
     flags.push_back(CLI::Flag('h', "help", "print help and exit"));
@@ -32,9 +33,9 @@ int main(int argc, char* argv[]) {
     flags.push_back(CLI::Flag('x', "hexadecimal", "print numbers in hex format"));
     std::vector<CLI::Option> options;
     std::vector<CLI::Argument> arguments;
-    arguments.push_back(CLI::Argument("FILE", "path of the file to work on"));
+    arguments.push_back(CLI::Argument("FILE", "path of the file to dump"));
 
-    CLI::ArgumentsParser cliParser = CLI::ArgumentsParser(argc, argv, flags, options, arguments, "Present NBT in human or machine readable formats - preliminary implementation.");
+    CLI::ArgumentsParser cliParser = CLI::ArgumentsParser(argc, argv, flags, options, arguments, "Present NBT in human or machine readable formats");
 
     if (cliParser.getFlag("help").value){
         std::cout << cliParser.getUsage() << std::endl;
@@ -70,7 +71,7 @@ int main(int argc, char* argv[]) {
     std::ifstream fileStream;
     fileStream.open(cliParser.getArgument(0).value, std::ios::in | std::ios::binary | std::ios::ate);
     if (!fileStream.is_open()) {
-        std::cerr << argv[0] << ": File not found: " << cliParser.getArgument(0).value << std::endl;
+        std::cerr << argv[0] << ": Could not open file: " << cliParser.getArgument(0).value << std::endl;
         return EXIT_RUNTIME;
     }
 
@@ -86,10 +87,8 @@ int main(int argc, char* argv[]) {
     }
     fileStream.close();
 
-    bool isValidData = NBT::validateRawNBTData(data, fileSize);
-    if (isValidData) {
-        std::cerr << "Valid data." << std::endl;
-    } else {
+    ErrorOr<std::vector<NBT::Tag::Generic*>> tags = NBT::deserialize(data, fileSize);
+    if (tags.isError) {
         std::cerr << "Invalid data." << std::endl;
         return EXIT_RUNTIME;
     }