diff --git a/protocol/src/main/java/mc/protocol/packets/play/server/ChunkDataPacket.java b/protocol/src/main/java/mc/protocol/packets/play/server/ChunkDataPacket.java
index 70ec3a9..ca75325 100644
--- a/protocol/src/main/java/mc/protocol/packets/play/server/ChunkDataPacket.java
+++ b/protocol/src/main/java/mc/protocol/packets/play/server/ChunkDataPacket.java
@@ -160,8 +160,8 @@ public class ChunkDataPacket implements ServerSidePacket {
 		// </Palette>
 
 		// <Data Array Length>
-		int dataArraySize = _16_16_16 * BITS_PER_BLOCK;
-		data.writeVarInt(dataArraySize / Long.SIZE);
+		int dataArraySize = _16_16_16 * BITS_PER_BLOCK / Long.SIZE;
+		data.writeVarInt(dataArraySize);
 		// </Data Array Length>
 
 		// <Data Array>
diff --git a/protocol/src/main/java/mc/protocol/utils/Bit13LongArray.java b/protocol/src/main/java/mc/protocol/utils/Bit13LongArray.java
index f3041cb..b8add1d 100644
--- a/protocol/src/main/java/mc/protocol/utils/Bit13LongArray.java
+++ b/protocol/src/main/java/mc/protocol/utils/Bit13LongArray.java
@@ -11,8 +11,8 @@ public class Bit13LongArray implements NibbleArray {
 	private int nibbleIndex = 0;
 	private int lastWriteIndex = 0;
 
-	public Bit13LongArray(int capacity) {
-		this.buffer = ByteBuffer.allocate(capacity);
+	public Bit13LongArray(int longCapacity) {
+		this.buffer = ByteBuffer.allocate(longCapacity * Long.SIZE);
 	}
 
 	@Override
@@ -28,7 +28,7 @@ public class Bit13LongArray implements NibbleArray {
 		//@formetter:on
 
 		if (tailValueIndex != lastWriteIndex) {
-			buffer.asLongBuffer().put(longValue);
+			buffer.putLong(longValue);
 			lastWriteIndex++;
 			longValue = 0L;
 		}
@@ -37,7 +37,7 @@ public class Bit13LongArray implements NibbleArray {
 		nibbleIndex++;
 
 		if (headValueIndex != tailValueIndex) {
-			buffer.asLongBuffer().put(longValue);
+			buffer.putLong(longValue);
 			lastWriteIndex++;
 			longValue = value >> (Long.SIZE - offsetValue);
 		}
@@ -45,6 +45,6 @@ public class Bit13LongArray implements NibbleArray {
 
 	@Override
 	public ByteBuffer byteBuffer() {
-		return this.buffer.rewind();
+		return this.buffer.putLong(longValue).rewind();
 	}
 }
diff --git a/protocol/src/main/java/mc/protocol/utils/HalfByteArray.java b/protocol/src/main/java/mc/protocol/utils/HalfByteArray.java
index ad0192e..d227757 100644
--- a/protocol/src/main/java/mc/protocol/utils/HalfByteArray.java
+++ b/protocol/src/main/java/mc/protocol/utils/HalfByteArray.java
@@ -19,9 +19,9 @@ public class HalfByteArray implements NibbleArray {
 		}
 
 		if (halfValue == null) {
-			halfValue = (byte) (value << BITS);
+			halfValue = (byte) (value);
 		} else {
-			buffer.put((byte) (halfValue | value));
+			buffer.put((byte) (halfValue | value << BITS));
 			halfValue = null;
 		}
 	}
@@ -30,7 +30,6 @@ public class HalfByteArray implements NibbleArray {
 	public ByteBuffer byteBuffer() {
 		if (halfValue != null) {
 			buffer.put(halfValue);
-			halfValue = null;
 		}
 
 		return this.buffer.rewind();