diff --git a/src/packet/login.rs b/src/packet/login.rs
index ba0e8b2..f8404ad 100644
--- a/src/packet/login.rs
+++ b/src/packet/login.rs
@@ -7,7 +7,6 @@ use crate::character::character::SelectScreenCharacter;
 
 use std::io::Read;
 
-pub const PATCH_FILE_CHUNK_SIZE: u16 = 0x8000; // 32kb
 pub const GUILD_CARD_CHUNK_SIZE: usize = 0x6800;
 pub const PARAM_DATA_CHUNK_SIZE: usize = 0x6800;
 
diff --git a/src/packet/patch.rs b/src/packet/patch.rs
index c008f2a..4339d34 100644
--- a/src/packet/patch.rs
+++ b/src/packet/patch.rs
@@ -3,7 +3,7 @@ use crate::{PSOPacket, PacketParseError, PSOPacketData};
 
 use std::io::Read;
 
-pub const PATCH_FILE_CHUNK_SIZE: u16 = 0x8000; // 32kb
+pub const PATCH_FILE_CHUNK_SIZE: u16 = 0x6000; // 24kb
 
 #[allow(non_camel_case_types)]
 type u8_str = u8;