diff --git a/packages/preferences-controller/src/index.ts b/packages/preferences-controller/src/index.ts
index 8032ff15917..ecad0400dfb 100644
--- a/packages/preferences-controller/src/index.ts
+++ b/packages/preferences-controller/src/index.ts
@@ -1 +1,2 @@
 export * from './PreferencesController';
+export { ETHERSCAN_SUPPORTED_CHAIN_IDS } from './constants';