diff --git a/program/src/close.rs b/program/src/close.rs
index 898a0b9..5d1f5f0 100644
--- a/program/src/close.rs
+++ b/program/src/close.rs
@@ -5,7 +5,7 @@ use steel::*;
 pub fn process_close(accounts: &[AccountInfo<'_>], _data: &[u8]) -> ProgramResult {
     // Load accounts.
     let clock = Clock::get()?;
-    let [signer_info, block_info, market_info, mint_base_info, mint_quote_info, recipient_info, treasury_info, vault_base_info, vault_quote_info, system_program, token_program] =
+    let [signer_info, block_info, market_info, mint_base_info, mint_quote_info, recipient_info, treasury_info, treasury_tokens_info, vault_base_info, vault_quote_info, system_program, token_program, associated_token_program] =
         accounts
     else {
         return Err(ProgramError::NotEnoughAccountKeys);
@@ -28,6 +28,32 @@ pub fn process_close(accounts: &[AccountInfo<'_>], _data: &[u8]) -> ProgramResul
         vault_quote_info.as_associated_token_account(market_info.key, mint_quote_info.key)?;
     system_program.is_program(&system_program::ID)?;
     token_program.is_program(&spl_token::ID)?;
+    associated_token_program.is_program(&spl_associated_token_account::ID)?;
+
+    // Load treasury token accounts.
+    if treasury_tokens_info.data_is_empty() {
+        create_associated_token_account(
+            signer_info,
+            treasury_info,
+            treasury_tokens_info,
+            mint_quote_info,
+            system_program,
+            token_program,
+            associated_token_program,
+        )?;
+    } else {
+        treasury_tokens_info.as_associated_token_account(&TREASURY_ADDRESS, mint_quote_info.key)?;
+    }
+
+    // Fund motherlode reward.
+    mint_to_signed(
+        mint_quote_info,
+        treasury_tokens_info,
+        treasury_info,
+        token_program,
+        OPEN_FEE,
+        &[TREASURY],
+    )?;
 
     // Payout block reward.
     if block.reward.lode_reward > 0 && block.reward.lode_authority != Pubkey::default() {
diff --git a/program/src/open.rs b/program/src/open.rs
index 639ce83..89f5333 100644
--- a/program/src/open.rs
+++ b/program/src/open.rs
@@ -12,7 +12,7 @@ pub fn process_open(accounts: &[AccountInfo<'_>], data: &[u8]) -> ProgramResult
 
     // Load accounts.
     let clock = Clock::get()?;
-    let [signer_info, block_info, collateral_info, commitment_info, market_info, mint_base_info, mint_quote_info, sender_info, treasury_info, treasury_tokens_info, vault_base_info, vault_quote_info, system_program, token_program, associated_token_program, rent_sysvar] =
+    let [signer_info, block_info, collateral_info, commitment_info, market_info, mint_base_info, mint_quote_info, sender_info, treasury_info, vault_base_info, vault_quote_info, system_program, token_program, associated_token_program, rent_sysvar] =
         accounts
     else {
         return Err(ProgramError::NotEnoughAccountKeys);
@@ -41,26 +41,11 @@ pub fn process_open(accounts: &[AccountInfo<'_>], data: &[u8]) -> ProgramResult
     associated_token_program.is_program(&spl_associated_token_account::ID)?;
     rent_sysvar.is_sysvar(&sysvar::rent::ID)?;
 
-    // Load treasury token accounts.
-    if treasury_tokens_info.data_is_empty() {
-        create_associated_token_account(
-            signer_info,
-            treasury_info,
-            treasury_tokens_info,
-            mint_quote_info,
-            system_program,
-            token_program,
-            associated_token_program,
-        )?;
-    } else {
-        treasury_tokens_info.as_associated_token_account(&TREASURY_ADDRESS, mint_quote_info.key)?;
-    }
-
     // Pay block opening fee.
-    transfer(
-        signer_info,
+    burn(
         sender_info,
-        treasury_tokens_info,
+        mint_quote_info,
+        signer_info,
         token_program,
         OPEN_FEE,
     )?;