diff --git a/src/extension-support/extension-manager.js b/src/extension-support/extension-manager.js
index 30e0f26cd..5ea965b21 100644
--- a/src/extension-support/extension-manager.js
+++ b/src/extension-support/extension-manager.js
@@ -10,12 +10,14 @@ const BlockType = require('./block-type');
 const Scratch3PenBlocks = require('../extensions/scratch3_pen');
 const Scratch3WeDo2Blocks = require('../extensions/scratch3_wedo2');
 const Scratch3MusicBlocks = require('../extensions/scratch3_music');
+const Scratch3TranslateBlocks = require('../extensions/scratch3_translate');
 const Scratch3VideoSensingBlocks = require('../extensions/scratch3_video_sensing');
 
 const builtinExtensions = {
     pen: Scratch3PenBlocks,
     wedo2: Scratch3WeDo2Blocks,
     music: Scratch3MusicBlocks,
+    translate: Scratch3TranslateBlocks,
     videoSensing: Scratch3VideoSensingBlocks
 };