diff --git a/bins/revme/src/cmd/statetest/runner.rs b/bins/revme/src/cmd/statetest/runner.rs
index 85764f6a..92f21ad1 100644
--- a/bins/revme/src/cmd/statetest/runner.rs
+++ b/bins/revme/src/cmd/statetest/runner.rs
@@ -267,7 +267,7 @@ pub fn execute_test_suite(
         }
 
         let mut env = Box::<Env>::default();
-        // for mainnet
+        // Ethereum Mainnet chain id, not changed to 706 to remain compatible with ethereum/tests
         env.cfg.chain_id = 1;
         // env.cfg.spec_id is set down the road
 
diff --git a/crates/primitives/src/env.rs b/crates/primitives/src/env.rs
index 44b07369..346c8ca8 100644
--- a/crates/primitives/src/env.rs
+++ b/crates/primitives/src/env.rs
@@ -376,7 +376,7 @@ impl CfgEnv {
 impl Default for CfgEnv {
     fn default() -> Self {
         Self {
-            chain_id: 1,
+            chain_id: 706, // sum of the ASCII values for "Sablier"
             perf_analyse_created_bytecodes: AnalysisKind::default(),
             limit_contract_code_size: None,
             #[cfg(feature = "c-kzg")]