diff --git a/README.md b/README.md
index f0d9c4a..9b87809 100644
--- a/README.md
+++ b/README.md
@@ -203,7 +203,7 @@ horizontal-rule | drawHorizontalRule | Insert Horizontal Line
fa fa-minus
preview | togglePreview | Toggle Preview
fa fa-eye no-disable
side-by-side | toggleSideBySide | Toggle Side by Side
fa fa-columns no-disable no-mobile
fullscreen | toggleFullScreen | Toggle Fullscreen
fa fa-arrows-alt no-disable no-mobile
-guide | [This link](http://nextstepwebs.github.io/simplemde-markdown-editor/markdown-guide) | Markdown Guide
fa fa-question-circle
+guide | [This link](https://simplemde.com/markdown-guide) | Markdown Guide
fa fa-question-circle
Customize the toolbar using the `toolbar` option like:
diff --git a/src/js/simplemde.js b/src/js/simplemde.js
index 2d9e765..59b0551 100644
--- a/src/js/simplemde.js
+++ b/src/js/simplemde.js
@@ -1214,7 +1214,7 @@ var toolbarBuiltInButtons = {
},
"guide": {
name: "guide",
- action: "http://nextstepwebs.github.io/simplemde-markdown-editor/markdown-guide",
+ action: "https://simplemde.com/markdown-guide",
className: "fa fa-question-circle",
title: "Markdown Guide",
default: true