diff --git a/.editorconfig b/.editorconfig
index 88e697833..d5d5a9fa7 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,6 +1,6 @@
 root = true
 
-[*.{js,jsm,json,html,css,pdf.link}]
+[*.{js,jsm,mjs,json,html,css,pdf.link}]
 charset = utf-8
 end_of_line = lf
 indent_size = 2