diff --git a/packages/host/ember-cli-build.js b/packages/host/ember-cli-build.js
index a4f6e68e62..0ae55d1196 100644
--- a/packages/host/ember-cli-build.js
+++ b/packages/host/ember-cli-build.js
@@ -48,10 +48,6 @@ module.exports = function (defaults) {
             new webpack.ProvidePlugin({
               process: 'process',
             }),
-            new webpack.IgnorePlugin({
-              // workaround for https://github.com/embroider-build/ember-auto-import/issues/578
-              resourceRegExp: /moment-timezone/,
-            }),
             new webpack.IgnorePlugin({
               resourceRegExp: /^https:\/\/cardstack\.com\/base/,
             }),