diff --git a/src/compiler/builders.js b/src/compiler/builders.js
index 10bce8d3eb743..3d44a4a715e47 100644
--- a/src/compiler/builders.js
+++ b/src/compiler/builders.js
@@ -2,6 +2,7 @@ import {buildDom as ampLayoutClassic} from '#builtins/amp-layout/build-dom';
 
 import {applyStaticLayout} from '#core/static-layout';
 
+import {buildDom as ampCarouselClassic1} from '../../extensions/amp-carousel/0.1/build-dom';
 import {buildDom as ampFitTextClassic} from '../../extensions/amp-fit-text/0.1/build-dom';
 
 const versionedBuilderMap = {
@@ -10,6 +11,7 @@ const versionedBuilderMap = {
   },
   '0.1': {
     'amp-fit-text': ampFitTextClassic,
+    'amp-carousel': ampCarouselClassic1,
   },
 };