diff --git a/config/prismjs/dvc-commands.js b/config/prismjs/dvc-commands.js
index 9a8276901e..4b4e7689ad 100644
--- a/config/prismjs/dvc-commands.js
+++ b/config/prismjs/dvc-commands.js
@@ -23,6 +23,8 @@ module.exports = [
   'pipeline show',
   'pipeline list',
   'pipeline',
+  'plot',
+  'plot diff',
   'move',
   'metrics show',
   'metrics remove',