diff --git a/packages/jstack/src/server/router.ts b/packages/jstack/src/server/router.ts
index 2f8b9eb..94c6b46 100644
--- a/packages/jstack/src/server/router.ts
+++ b/packages/jstack/src/server/router.ts
@@ -122,8 +122,6 @@ export class Router<
     registeredPaths: string[]
   }
 
-  _errorHandler: undefined | ErrorHandler<any> = undefined
-
   config(config?: RouterConfig) {
     if (config) {
       this._metadata.config = config
@@ -148,11 +146,6 @@ export class Router<
       registeredPaths: [],
     }
 
-    this.onError = (handler: ErrorHandler<any>) => {
-      this._errorHandler = handler
-      return this
-    }
-
     this.setupRoutes(procedures)
   }