diff --git a/packages/explorer/src/app/(explorer)/api/world-abi/route.ts b/packages/explorer/src/app/(explorer)/api/world-abi/route.ts
index c8ff66429a..94bc556207 100644
--- a/packages/explorer/src/app/(explorer)/api/world-abi/route.ts
+++ b/packages/explorer/src/app/(explorer)/api/world-abi/route.ts
@@ -5,12 +5,12 @@ import { fetchBlockLogs } from "@latticexyz/block-logs-stream";
 import { helloStoreEvent } from "@latticexyz/store";
 import { getWorldAbi } from "@latticexyz/store-sync/world";
 import { helloWorldEvent } from "@latticexyz/world";
-import { chainIdToName, supportedChainId, supportedChains, validateChainId } from "../../../../common";
+import { getChainById, supportedChainId, validateChainId } from "../../../../common";
 
 export const dynamic = "force-dynamic";
 
 async function getClient(chainId: supportedChainId) {
-  const chain = supportedChains[chainIdToName[chainId]]; // TODO: fix types
+  const chain = getChainById(chainId);
   const client = createClient({
     chain,
     transport: http(),
@@ -20,7 +20,7 @@ async function getClient(chainId: supportedChainId) {
 }
 
 function getIndexerUrl(chainId: supportedChainId) {
-  const chain = supportedChains[chainIdToName[chainId]!]; // TODO: fix types
+  const chain = getChainById(chainId);
   return "indexerUrl" in chain ? chain.indexerUrl : undefined;
 }
 
diff --git a/packages/explorer/src/bin/explorer.ts b/packages/explorer/src/bin/explorer.ts
index 6ba11ccc58..99a464528a 100755
--- a/packages/explorer/src/bin/explorer.ts
+++ b/packages/explorer/src/bin/explorer.ts
@@ -125,7 +125,7 @@ async function startStoreIndexer() {
 
   await rm(indexerDatabasePath, { recursive: true, force: true });
 
-  console.log("Running SQLite indexer for anvil..."); // TODO: running for custom chain
+  console.log("Running SQLite indexer..."); // TODO: running for custom chain
   indexerProcess = spawn("sh", ["node_modules/.bin/sqlite-indexer"], {
     cwd: packageRoot,
     stdio: "inherit",
diff --git a/packages/explorer/src/common.ts b/packages/explorer/src/common.ts
index 080398a769..8a45be4d4a 100644
--- a/packages/explorer/src/common.ts
+++ b/packages/explorer/src/common.ts
@@ -55,6 +55,16 @@ export const getChain = (chainName: supportedChainName | string) => {
   return null;
 };
 
+export const getChainById = (chainId: supportedChainId | number) => {
+  if (chainId === customChain?.id) {
+    return customChain;
+  } else if (chainId in supportedChains) {
+    // @ts-expect-error ignore for now TODO: fix types
+    return supportedChains[chainId];
+  }
+  return null;
+};
+
 export const chainIdToName = Object.fromEntries(
   Object.entries(supportedChains).map(([chainName, chain]) => [chain.id, chainName]),
 ) as Record<supportedChainId, supportedChainName>;