diff --git a/lib/rst-model.js b/lib/rst-model.js
index 491d4fd..f18d876 100644
--- a/lib/rst-model.js
+++ b/lib/rst-model.js
@@ -1,6 +1,6 @@
 const {AbstractModel} = require('./abstract-model');
 
-const HEADING_REGEX = /^(.+)\n([!-/:-@[-`{-~])\2+$/gm;
+const HEADING_REGEX = /^(.+)\r?\n([!-/:-@[-`{-~])\2+$/gm;
 
 class ReStructuredTextModel extends AbstractModel {
   constructor(editorOrBuffer) {