diff --git a/filetypes.xml b/filetypes.xml
index 2521443..3a3e13c 100644
--- a/filetypes.xml
+++ b/filetypes.xml
@@ -4,6 +4,7 @@
     <extensionMap>
       <mapping pattern="_nanorc" type="AUTO_DETECTED" />
       <mapping pattern="npm-shrinkwrap" type="AUTO_DETECTED" />
+      <mapping ext="jst" type="EJS" />
       <mapping pattern="wordlist.json" type="JSON" />
       <mapping pattern=".eslintrc.json.orig" type="PLAIN_TEXT" />
       <mapping ext="bak" type="PLAIN_TEXT" />