diff --git a/pages/editor.js b/pages/editor.js
index ec7d50e..a3f9cdf 100644
--- a/pages/editor.js
+++ b/pages/editor.js
@@ -31,7 +31,7 @@ import { getState, saveState } from '../lib/util'
 
 const removeQueryString = str => {
   const qI = str.indexOf('?')
-  return qI > 0 ? str.substr(0, qI) : str
+  return qI >= 0 ? str.substr(0, qI) : str
 }
 
 class Editor extends React.Component {