diff --git a/crates/consensus/src/transaction/legacy.rs b/crates/consensus/src/transaction/legacy.rs
index fc8f4acd5af..262d9d066c5 100644
--- a/crates/consensus/src/transaction/legacy.rs
+++ b/crates/consensus/src/transaction/legacy.rs
@@ -228,6 +228,10 @@ impl Transaction for TxLegacy {
 }
 
 impl SignableTransaction<Signature> for TxLegacy {
+    fn use_eip155(&self) -> bool {
+        self.chain_id.is_some()
+    }
+
     fn set_chain_id(&mut self, chain_id: ChainId) {
         self.chain_id = Some(chain_id);
     }
diff --git a/crates/consensus/src/transaction/mod.rs b/crates/consensus/src/transaction/mod.rs
index 6d6c3755190..6b6df0c9139 100644
--- a/crates/consensus/src/transaction/mod.rs
+++ b/crates/consensus/src/transaction/mod.rs
@@ -59,6 +59,11 @@ pub trait Transaction: any::Any + Send + Sync + 'static {
 /// types, or in other networks. For example, in Optimism, the deposit transaction signature is the
 /// unit type `()`.
 pub trait SignableTransaction<Signature>: Transaction {
+    /// True if the transaction uses EIP-155 signatures.
+    fn use_eip155(&self) -> bool {
+        false
+    }
+
     /// Sets `chain_id`.
     ///
     /// Prefer [`set_chain_id_checked`](Self::set_chain_id_checked).
diff --git a/crates/signer-wallet/src/lib.rs b/crates/signer-wallet/src/lib.rs
index 1a482e2e9bb..f567e00bc9b 100644
--- a/crates/signer-wallet/src/lib.rs
+++ b/crates/signer-wallet/src/lib.rs
@@ -118,11 +118,7 @@ impl<D: PrehashSigner<(ecdsa::Signature, RecoveryId)>> SignerSync for Wallet<D>
     #[inline]
     fn sign_hash_sync(&self, hash: &B256) -> Result<Signature> {
         let (recoverable_sig, recovery_id) = self.signer.sign_prehash(hash.as_ref())?;
-        let mut sig = Signature::from_signature_and_parity(recoverable_sig, recovery_id)?;
-        if let Some(chain_id) = self.chain_id {
-            sig = sig.with_chain_id(chain_id);
-        }
-        Ok(sig)
+        Ok(Signature::from_signature_and_parity(recoverable_sig, recovery_id)?)
     }
 
     #[inline]
diff --git a/crates/signer/src/lib.rs b/crates/signer/src/lib.rs
index c03c1a8d6df..1f3b33c410e 100644
--- a/crates/signer/src/lib.rs
+++ b/crates/signer/src/lib.rs
@@ -48,8 +48,10 @@ macro_rules! sign_transaction_with_chain_id {
 
         let mut sig = $sign.map_err(alloy_signer::Error::other)?;
 
-        if let Some(chain_id) = $signer.chain_id().or_else(|| $tx.chain_id()) {
-            sig = sig.with_chain_id(chain_id);
+        if $tx.use_eip155() {
+            if let Some(chain_id) = $signer.chain_id().or_else(|| $tx.chain_id()) {
+                sig = sig.with_chain_id(chain_id);
+            }
         }
 
         Ok(sig)