diff --git a/crates/sim/src/gas/gas.rs b/crates/sim/src/gas/gas.rs
index a1a35d31b..c88cb3fe1 100644
--- a/crates/sim/src/gas/gas.rs
+++ b/crates/sim/src/gas/gas.rs
@@ -13,7 +13,7 @@
 
 use std::{cmp, fmt::Debug, sync::Arc};
 
-use anyhow::Context;
+use anyhow::{bail, Context};
 use ethers::types::U256;
 use rundler_provider::{EntryPoint, L1GasProvider, Provider};
 use rundler_types::{
@@ -84,6 +84,10 @@ pub async fn calc_required_pre_verification_gas<
         op.max_fee_per_gas(),
     );
 
+    if gas_price.is_zero() {
+        bail!("Gas price cannot be zero")
+    }
+
     let dynamic_gas = entry_point
         .calc_l1_gas(entry_point.address(), op.clone(), gas_price)
         .await?;
diff --git a/crates/sim/src/precheck.rs b/crates/sim/src/precheck.rs
index 0d73d724b..8b53afa47 100644
--- a/crates/sim/src/precheck.rs
+++ b/crates/sim/src/precheck.rs
@@ -408,7 +408,6 @@ where
     ) -> anyhow::Result<U256> {
         gas::calc_required_pre_verification_gas(&self.chain_spec, &self.entry_point, &op, base_fee)
             .await
-            .context("should calculate pre-verification gas")
     }
 }