diff --git a/custom/networking/packets/clientbound/play/chunk_data.py b/custom/networking/packets/clientbound/play/chunk_data.py
index 7cf12da..1192b78 100644
--- a/custom/networking/packets/clientbound/play/chunk_data.py
+++ b/custom/networking/packets/clientbound/play/chunk_data.py
@@ -11,12 +11,13 @@ from ....types import nbt
 class ChunkDataPacket(Packet):
     @staticmethod
     def get_id(context):
-        return 0x22 # FIXME
+        return 0x20 # FIXME
 
     packet_name = 'chunk data'
     fields = 'x', 'bit_mask_y', 'z', 'full_chunk'
 
     def read(self, file_object):
+        print('reading chunk')
         self.x = Integer.read(file_object)
         self.z = Integer.read(file_object)
         self.full_chunk = Boolean.read(file_object)
@@ -24,7 +25,8 @@ class ChunkDataPacket(Packet):
         self.heightmaps = Nbt.read(file_object)
         self.biomes = []
         if self.full_chunk:
-            for i in range(1024):
+            biomes_length = VarInt.read(file_object)
+            for i in range(biomes_length):
                 self.biomes.append(Integer.read(file_object))
         size = VarInt.read(file_object)
         self.data = file_object.read(size)
diff --git a/start.py b/start.py
index 075880f..7c3ba54 100644
--- a/start.py
+++ b/start.py
@@ -127,6 +127,8 @@ def main():
                 packet = serverbound.play.ClientStatusPacket()
                 packet.action_id = serverbound.play.ClientStatusPacket.RESPAWN
                 connection.write_packet(packet)
+            elif text == '!test':
+                print(chunks.get_block_at(91, 65, 57))
             else:
                 packet = serverbound.play.ChatPacket()
                 packet.message = text