diff --git a/packages/core/src/config.js b/packages/core/src/config.js
index 3f2377f95..04435e86f 100644
--- a/packages/core/src/config.js
+++ b/packages/core/src/config.js
@@ -44,7 +44,8 @@ export const configSchema = {
         default: true
       },
       disableShadowDOM: {
-        type: 'boolean'
+        type: 'boolean',
+        default: false
       },
       domTransformation: {
         type: 'string'