diff --git a/docs/guides/references/configuration.mdx b/docs/guides/references/configuration.mdx
index add53e08c6..114ec2ade9 100644
--- a/docs/guides/references/configuration.mdx
+++ b/docs/guides/references/configuration.mdx
@@ -68,6 +68,7 @@ default values.
 | Option                 | Default                           | Description                                                                                                                                                                                  |
 | ---------------------- | --------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `clientCertificates`   | `[]`                              | An optional array of [client certificates](/guides/references/client-certificates).                                                                                                          |
+| `defaultBrowser`       | `undefined`                       | The browser other than electron used if the user doesn't pass in "--browser".                                                                                                                |
 | `env`                  | `{}`                              | Any values to be set as [environment variables](/guides/guides/environment-variables).                                                                                                       |
 | `includeShadowDom`     | `false`                           | Whether to traverse shadow DOM boundaries and include elements within the shadow DOM in the results of query commands (e.g. [`cy.get()`](/api/commands/get)).                                |
 | `numTestsKeptInMemory` | `50`                              | The number of tests for which snapshots and command data are kept in memory. Reduce this number if you are experiencing high memory consumption in your browser during a test run.           |