diff --git a/src/lib/token_list_gen.ts b/src/lib/token_list_gen.ts
index ca5a0ad1..895ff56b 100644
--- a/src/lib/token_list_gen.ts
+++ b/src/lib/token_list_gen.ts
@@ -56,6 +56,7 @@ export const generateTokenList = async (
     includeOldDataFields?: boolean;
     sourceListURL?: string;
     skipValidation?: boolean;
+    preserveListName?: boolean
   }
 ) => {
   if (options?.includeAllL1Tokens && options.includeUnbridgedL1Tokens) {
@@ -334,7 +335,7 @@ export const generateTokenList = async (
   })();
   const sourceListURL = getFormattedSourceURL(options?.sourceListURL);
   const arbTokenList: ArbTokenList = {
-    name: listNameToArbifiedListName(name),
+    name: (options && options.preserveListName) ? name :  listNameToArbifiedListName(name),
     timestamp: new Date().toISOString(),
     version,
     tokens: arbifiedTokenList,
@@ -365,7 +366,7 @@ export const generateTokenList = async (
 
 export const arbifyL1List = async (
   pathOrUrl: string,
-  includeOldDataFields?: boolean
+  includeOldDataFields: boolean
 ): Promise<{
   newList: ArbTokenList;
   l1ListName: string;
@@ -390,7 +391,7 @@ export const arbifyL1List = async (
   };
 };
 
-export const updateArbifiedList = async (pathOrUrl: string) => {
+export const updateArbifiedList = async (pathOrUrl: string, includeOldDataFields: boolean) => {
   const arbTokenList = await getTokenListObj(pathOrUrl);
   removeInvalidTokensFromList(arbTokenList);
   const path =
@@ -410,6 +411,8 @@ export const updateArbifiedList = async (pathOrUrl: string) => {
   const newList = await generateTokenList(arbTokenList, prevArbTokenList, {
     includeAllL1Tokens: true,
     sourceListURL: isValidHttpUrl(pathOrUrl) ? pathOrUrl : undefined,
+    includeOldDataFields,
+    preserveListName: true
   });
 
   return {
diff --git a/src/main.ts b/src/main.ts
index f79a40f2..43a77fb6 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -22,16 +22,17 @@ const main = async () => {
 
   let tokenList: ArbTokenList;
   let path: string;
+  const includeOldDataFields:boolean =  !!args.includeOldDataFields
 
   if (args.action === 'arbify') {
     const { newList, l1ListName } = await arbifyL1List(
       args.tokenList,
-      !!args.includeOldDataFields
+      includeOldDataFields
     );
     tokenList = newList;
     path = getPath(l1ListName);
   } else if (args.action === 'update') {
-    const { newList, path: _path } = await updateArbifiedList(args.tokenList);
+    const { newList, path: _path } = await updateArbifiedList(args.tokenList, includeOldDataFields);
     tokenList = newList;
     path = _path;
   } else if (args.action === 'alltokenslist') {
diff --git a/update_all b/update_all
index ce4080e1..706b0d1e 100755
--- a/update_all
+++ b/update_all
@@ -5,6 +5,8 @@ yarn fullList --l2NetworkID 42161
 yarn arbify --l2NetworkID 42161 --tokenList https://gateway.ipfs.io/ipns/tokens.uniswap.org
 yarn arbify --l2NetworkID 42161 --tokenList https://www.gemini.com/uniswap/manifest.json
 yarn arbify --l2NetworkID 42161 --tokenList https://api.coinmarketcap.com/data-api/v3/uniswap/all.json
+# update whitelist era list (for e.g. changed gateways)
+yarn update --l2NetworkID 42161 --tokenList ./src/ArbTokenLists/arbed_arb_whitelist_era.json --includeOldDataFields true
 
 # nova
 # yarn fullList --l2NetworkID 42170