diff --git a/src/World/Level.cpp b/src/World/Level.cpp
index 8cd396e..56628b9 100644
--- a/src/World/Level.cpp
+++ b/src/World/Level.cpp
@@ -29,14 +29,12 @@
 #include "../Util.hpp"
 #include "../NBT/IntTag.hpp"
 
-#include <iostream>
-
 
 namespace MinedMap {
 namespace World {
 
 Level::Level(const char *filename) {
-	std::vector<uint8_t> buffer = readGZip(filename);
+	buffer = readGZip(filename);
 
 	Buffer nbt(buffer.data(), buffer.size());
 	std::pair<std::string, std::shared_ptr<const NBT::Tag>> tag = NBT::Tag::readNamedTag(&nbt);
diff --git a/src/World/Level.hpp b/src/World/Level.hpp
index 6cdfc4e..6fd45a8 100644
--- a/src/World/Level.hpp
+++ b/src/World/Level.hpp
@@ -29,6 +29,7 @@
 #include "../NBT/CompoundTag.hpp"
 
 #include <cstdint>
+#include <vector>
 
 
 namespace MinedMap {
@@ -36,6 +37,8 @@ namespace World {
 
 class Level {
 private:
+	std::vector<uint8_t> buffer;
+
 	std::shared_ptr<const NBT::CompoundTag> root;
 	std::shared_ptr<const NBT::CompoundTag> data;