diff --git a/include/chunk.hpp b/include/chunk.hpp
index f69c5ec..0eb7184 100644
--- a/include/chunk.hpp
+++ b/include/chunk.hpp
@@ -15,7 +15,7 @@
 #include "intervalmap.hpp"
 #include "shader.hpp"
 
-#define CHUNK_SIZE 2
+#define CHUNK_SIZE 8
 #define CHUNK_VOLUME (CHUNK_SIZE * CHUNK_SIZE * CHUNK_SIZE)
 #define CHUNK_MAX_INDEX (CHUNK_VOLUME - 1)
 
diff --git a/src/chunk.cpp b/src/chunk.cpp
index baa5e0e..c92e8ef 100644
--- a/src/chunk.cpp
+++ b/src/chunk.cpp
@@ -33,6 +33,12 @@ namespace Chunk
         glDeleteBuffers(1, &(this->colorBuffer));
         glDeleteBuffers(1, &(this->VBO));
         glDeleteBuffers(1, &(this->EBO));
+
+	vertices.clear();
+	indices.clear();
+	colors.clear();
+
+	mutex_state.unlock();
     }
 
     Block Chunk::getBlock(int x, int y, int z)