diff --git a/programs/mango-v4/src/instructions/create_perp_market.rs b/programs/mango-v4/src/instructions/create_perp_market.rs
index 566b34027..ee1500862 100644
--- a/programs/mango-v4/src/instructions/create_perp_market.rs
+++ b/programs/mango-v4/src/instructions/create_perp_market.rs
@@ -2,24 +2,23 @@ use anchor_lang::prelude::*;
 
 use crate::error::MangoError;
 use crate::state::*;
-use anchor_spl::token::Token;
 
 #[derive(Accounts)]
 pub struct CreatePerpMarket<'info> {
     #[account(
-        mut,
         has_one = admin,
     )]
     pub group: AccountLoader<'info, Group>,
     pub admin: Signer<'info>,
 
     pub oracle: UncheckedAccount<'info>,
+
     #[account(
         init,
         seeds = [group.key().as_ref(), b"PerpMarket".as_ref(), oracle.key().as_ref()],
         bump,
         payer = payer,
-        space = 8 + std::mem::size_of::<PerpMarket>(), 
+        space = 8 + std::mem::size_of::<PerpMarket>(),
     )]
     pub perp_market: AccountLoader<'info, PerpMarket>,
     #[account(
@@ -27,7 +26,7 @@ pub struct CreatePerpMarket<'info> {
         seeds = [group.key().as_ref(), b"Asks".as_ref(), perp_market.key().as_ref()],
         bump,
         payer = payer,
-        space = 8 + std::mem::size_of::<PerpMarket>(),
+        space = 8 + std::mem::size_of::<Book>(),
     )]
     pub asks: AccountLoader<'info, crate::state::Book>,
     #[account(
@@ -35,7 +34,7 @@ pub struct CreatePerpMarket<'info> {
         seeds = [group.key().as_ref(), b"Bids".as_ref(), perp_market.key().as_ref()],
         bump,
         payer = payer,
-        space = 8 + std::mem::size_of::<PerpMarket>(),
+        space = 8 + std::mem::size_of::<Book>(),
     )]
     pub bids: AccountLoader<'info, Book>,
     #[account(
@@ -43,7 +42,7 @@ pub struct CreatePerpMarket<'info> {
         seeds = [group.key().as_ref(), b"EventQueue".as_ref(), perp_market.key().as_ref()],
         bump,
         payer = payer,
-        space = 8 + std::mem::size_of::<PerpMarket>(),
+        space = 8 + std::mem::size_of::<EventQueue>(),
     )]
     pub event_queue: AccountLoader<'info, crate::state::EventQueue>,
 
@@ -51,14 +50,17 @@ pub struct CreatePerpMarket<'info> {
     pub payer: Signer<'info>,
 
     pub system_program: Program<'info, System>,
-    pub token_program: Program<'info, Token>,
-    pub rent: Sysvar<'info, Rent>,
 }
 
 pub fn create_perp_market(
     ctx: Context<CreatePerpMarket>,
     quote_lot_size: i64,
     base_lot_size: i64,
+    // todo
+    // base token index (optional)
+    // quote token index
+    // oracle
+    // perp market index
 ) -> Result<()> {
     let mut perp_market = ctx.accounts.perp_market.load_init()?;
     *perp_market = PerpMarket {