diff --git a/programs/casier/src/lib.rs b/programs/casier/src/lib.rs
index 0b55be5..70fa116 100644
--- a/programs/casier/src/lib.rs
+++ b/programs/casier/src/lib.rs
@@ -130,6 +130,8 @@ pub mod casier {
             Some(i) => {
                 if locker.amounts[i] != before_amount {
                     return Err(error!(ErrorCode::InvalidBeforeState));
+                } else if withdraw_amount > ctx.accounts.vault_ta.amount {
+                    return Err(error!(ErrorCode::InvalidWithdrawAmount));
                 // if final amount is lower than the amounts of tokens that will be left, we should call withdraw_and_burn
                 } else if (final_amount)
                     < ctx.accounts.vault_ta.amount - withdraw_amount
@@ -377,4 +379,6 @@ pub enum ErrorCode {
     BurnNotRequired,
     #[msg("BurnRequired")]
     BurnRequired,
+    #[msg("InvalidWithdrawAmount")]
+    InvalidWithdrawAmount,
 }