diff --git a/src/extension-support/extension-manager.js b/src/extension-support/extension-manager.js
index bf666a28c..b27b0d642 100644
--- a/src/extension-support/extension-manager.js
+++ b/src/extension-support/extension-manager.js
@@ -20,7 +20,6 @@ const builtinExtensions = {
     text2speech: () => require('../extensions/scratch3_text2speech'),
     translate: () => require('../extensions/scratch3_translate'),
     videoSensing: () => require('../extensions/scratch3_video_sensing'),
-    speech2text: () => require('../extensions/scratch3_speech2text'),
     ev3: () => require('../extensions/scratch3_ev3'),
     makeymakey: () => require('../extensions/scratch3_makeymakey'),
     boost: () => require('../extensions/scratch3_boost'),