diff --git a/src/app/debugger/remix-debugger/src/ui/StackPanel.js b/src/app/debugger/remix-debugger/src/ui/StackPanel.js
index 526a4043b5..de768dc616 100644
--- a/src/app/debugger/remix-debugger/src/ui/StackPanel.js
+++ b/src/app/debugger/remix-debugger/src/ui/StackPanel.js
@@ -1,7 +1,5 @@
 'use strict'
 var DropdownPanel = require('./DropdownPanel')
-var remixLib = require('remix-lib')
-var ui = remixLib.helpers.ui
 var yo = require('yo-yo')
 
 function StackPanel (_parent, _traceManager) {