diff --git a/ExtractCargo.cpp b/ExtractCargo.cpp
index 115e2b4..3d1398a 100644
--- a/ExtractCargo.cpp
+++ b/ExtractCargo.cpp
@@ -147,9 +147,10 @@ void ExtractCargo::ExtractingFilesFromCargo()
 		std::cout << dir.string() << std::endl;
 
 		std::ofstream file(dir, std::ios::binary);
-
 		cargoFile.seekg(fh.offset);
 
+		XXH64_reset(xxhState, 0);
+
 		// Strumień wyciągający
 		if (fh.flag == flag::raw)
 		{
@@ -159,6 +160,7 @@ void ExtractCargo::ExtractingFilesFromCargo()
 
 				std::vector<char> buffer(streamChunk);
 				cargoFile.read(buffer.data(), streamChunk);
+				XXH64_update(xxhState, buffer.data(), buffer.size());
 				file.write(reinterpret_cast<const char*>(buffer.data()), streamChunk);
 			}
 		}
@@ -199,11 +201,18 @@ void ExtractCargo::ExtractingFilesFromCargo()
 					rawBuffer = eman.decrypt(buffer);
 				}
 
+				XXH64_update(xxhState, rawBuffer.data(), rawBuffer.size());
 				file.write(reinterpret_cast<const char*>(rawBuffer.data()), chunkSize);
 			}
 		}
 
 		file.close();
+
+		if (XXH64_digest(xxhState) != fh.crc)
+		{
+			std::cerr << dir.string() << "  Error: Corrupted data integration CRC" << std::endl;
+
+		}
 	}
 
 	std::cout << "Unpacking complete!" << std::endl;