diff --git a/crates/revm/src/optimism/handler_register.rs b/crates/revm/src/optimism/handler_register.rs
index 37f8fec9..e75d7403 100644
--- a/crates/revm/src/optimism/handler_register.rs
+++ b/crates/revm/src/optimism/handler_register.rs
@@ -234,7 +234,7 @@ pub fn deduct_caller<SPEC: Spec, EXT, DB: Database>(
             ));
         };
 
-        let tx_l1_cost = if context.evm.inner.env.tx.gas_price.is_zero() && SPEC::enabled(WRIGHT) {
+        let tx_l1_cost = if context.evm.inner.env.effective_gas_price().is_zero() && SPEC::enabled(WRIGHT) {
             U256::ZERO
         } else {
             context
@@ -287,7 +287,7 @@ pub fn reward_beneficiary<SPEC: Spec, EXT, DB: Database>(
             ));
         };
 
-        let l1_cost = if context.evm.inner.env.tx.gas_price.is_zero() && SPEC::enabled(WRIGHT) {
+        let l1_cost = if context.evm.inner.env.effective_gas_price().is_zero() && SPEC::enabled(WRIGHT) {
             U256::ZERO
         } else {
             l1_block_info.calculate_tx_l1_cost(enveloped_tx, SPEC::SPEC_ID)