diff --git a/src/ipc/chat/mod.rs b/src/ipc/chat/mod.rs
index f4c7369..6828e81 100644
--- a/src/ipc/chat/mod.rs
+++ b/src/ipc/chat/mod.rs
@@ -36,14 +36,14 @@ impl Default for ServerChatIpcSegment {
 }
 
 #[binrw]
-#[br(import(magic: &ServerChatIpcType, _size: &u32))]
+#[br(import(magic: &ServerChatIpcType, size: &u32))]
 #[derive(Debug, Clone)]
 pub enum ServerChatIpcData {
     /// Sent by the server to Initialize something chat-related?
     #[br(pre_assert(*magic == ServerChatIpcType::LoginReply))]
-    LoginReply {
-        timestamp: u32,
-        sid: u32,
+    LoginReply { timestamp: u32, sid: u32 },
+    Unknown {
+        #[br(count = size - 32)]
+        unk: Vec<u8>,
     },
-    Unknown,
 }
diff --git a/src/ipc/lobby/mod.rs b/src/ipc/lobby/mod.rs
index 0d5640d..bf16b7d 100644
--- a/src/ipc/lobby/mod.rs
+++ b/src/ipc/lobby/mod.rs
@@ -83,7 +83,7 @@ impl Default for ServerLobbyIpcSegment {
 }
 
 #[binrw]
-#[br(import(magic: &ClientLobbyIpcType, _size: &u32))]
+#[br(import(magic: &ClientLobbyIpcType, size: &u32))]
 #[derive(Debug, Clone)]
 pub enum ClientLobbyIpcData {
     /// Sent by the client when it requests the character list in the lobby.
@@ -127,11 +127,14 @@ pub enum ClientLobbyIpcData {
     /// Sent by the client when they request something about the character (e.g. deletion.)
     #[br(pre_assert(*magic == ClientLobbyIpcType::CharaMake))]
     CharaMake(CharaMake),
-    Unknown,
+    Unknown {
+        #[br(count = size - 32)]
+        unk: Vec<u8>,
+    },
 }
 
 #[binrw]
-#[br(import(magic: &ServerLobbyIpcType, _size: &u32))]
+#[br(import(magic: &ServerLobbyIpcType, size: &u32))]
 #[derive(Debug, Clone)]
 pub enum ServerLobbyIpcData {
     /// Sent by the server to indicate an lobby error occured.
@@ -194,7 +197,10 @@ pub enum ServerLobbyIpcData {
         #[brw(pad_after = 202)]
         unk1: u8,
     },
-    Unknown,
+    Unknown {
+        #[br(count = size - 32)]
+        unk: Vec<u8>,
+    },
 }
 
 #[cfg(test)]
diff --git a/src/ipc/zone/mod.rs b/src/ipc/zone/mod.rs
index 114f6f6..cf3e77b 100644
--- a/src/ipc/zone/mod.rs
+++ b/src/ipc/zone/mod.rs
@@ -149,7 +149,7 @@ impl Default for ServerZoneIpcSegment {
 }
 
 #[binrw]
-#[br(import(magic: &ServerZoneIpcType, _size: &u32))]
+#[br(import(magic: &ServerZoneIpcType, size: &u32))]
 #[derive(Debug, Clone)]
 pub enum ServerZoneIpcData {
     /// Sent by the server as response to ZoneInitRequest.
@@ -211,14 +211,10 @@ pub enum ServerZoneIpcData {
     },
     /// Unknown, but seems to contain information on cross-world linkshells
     #[br(pre_assert(*magic == ServerZoneIpcType::LinkShellInformation))]
-    LinkShellInformation {
-        unk: [u8; 456],
-    },
+    LinkShellInformation { unk: [u8; 456] },
     /// Sent by the server when it wants the client to... prepare to zone?
     #[br(pre_assert(*magic == ServerZoneIpcType::PrepareZoning))]
-    PrepareZoning {
-        unk: [u32; 4],
-    },
+    PrepareZoning { unk: [u32; 4] },
     /// Sent by the server
     #[br(pre_assert(*magic == ServerZoneIpcType::ActorControl))]
     ActorControl(ActorControl),
@@ -308,7 +304,10 @@ pub enum ServerZoneIpcData {
         #[brw(pad_after = 26)]
         unk2: u16,
     },
-    Unknown,
+    Unknown {
+        #[br(count = size - 32)]
+        unk: Vec<u8>,
+    },
 }
 
 #[binrw]