diff --git a/grunt/helpers/data/Language.js b/grunt/helpers/data/Language.js
index 2cb10dabe..e52131d3f 100644
--- a/grunt/helpers/data/Language.js
+++ b/grunt/helpers/data/Language.js
@@ -38,7 +38,7 @@ class Language {
     /** @type {string} */
     this.jsonext = jsonext;
     /** @type {string} */
-    this.path = languagePath.replace(/\\/g, '/');
+    this.path = path.normalize(languagePath).replace(/\\/g, '/');
     /** @type {string} */
     this.name = this.path.split('/').filter(Boolean).pop();
     /** @type {string} */