diff --git a/browser/components/MarkdownPreview.js b/browser/components/MarkdownPreview.js
index c7ae7476..c5de7415 100644
--- a/browser/components/MarkdownPreview.js
+++ b/browser/components/MarkdownPreview.js
@@ -219,7 +219,7 @@ export default class MarkdownPreview extends React.Component {
       let syntax = CodeMirror.findModeByName(el.className)
       if (syntax == null) syntax = CodeMirror.findModeByName('Plain Text')
       CodeMirror.requireMode(syntax.mode, () => {
-        let content = el.innerHTML
+        let content = decodeHTMLEntities(el.innerHTML)
         el.innerHTML = ''
         el.parentNode.className += ` cm-s-${codeBlockTheme} CodeMirror`
         CodeMirror.runMode(content, syntax.mime, el, {