diff --git a/packages/client/src/rpc/index.ts b/packages/client/src/rpc/index.ts
index c3b4eeb068..c643560adb 100644
--- a/packages/client/src/rpc/index.ts
+++ b/packages/client/src/rpc/index.ts
@@ -26,6 +26,7 @@ export class RPCManager {
   /**
    * Returns bound methods for modules concat with underscore `_`
    * @param engine Pass true to return only `engine_` API endpoints (default: false)
+   * @param rpcDebug Pass true to include stack traces on errors (default: false)
    */
   getMethods(engine = false, rpcDebug = false) {
     const methods: { [key: string]: Function } = {}