diff --git a/packages/netlify-cms-widget-markdown/src/serializers/index.js b/packages/netlify-cms-widget-markdown/src/serializers/index.js
index 43bbacdfe6af..d760c3cec949 100644
--- a/packages/netlify-cms-widget-markdown/src/serializers/index.js
+++ b/packages/netlify-cms-widget-markdown/src/serializers/index.js
@@ -135,7 +135,8 @@ export const remarkToMarkdown = obj => {
     .use(remarkToMarkdownPlugin, remarkToMarkdownPluginOpts)
     .use(remarkAllowAllText)
     .use(createRemarkShortcodeStringifier({ plugins: getEditorComponents() }))
-    .stringify(processedMdast);
+    .stringify(processedMdast)
+    .replace((/\r+/g, '\n'), processedMdast);
 
   /**
    * Return markdown with trailing whitespace removed.