diff --git a/packages/core/types/zapier.custom.d.ts b/packages/core/types/zapier.custom.d.ts
index 0a5875261..e8e4095ae 100644
--- a/packages/core/types/zapier.custom.d.ts
+++ b/packages/core/types/zapier.custom.d.ts
@@ -164,6 +164,14 @@ export interface HttpRequestOptions {
   url?: string;
   skipThrowForStatus?: boolean;
 
+  /**
+   * Contains the characters that you want left unencoded in the query
+   * params (`req.params`). If unspecified, `z.request()` will
+   * percent-encode non-ascii characters and these reserved characters:
+   * ``:$/?#[]@$&+,;=^@`\``.
+   */
+  skipEncodingChars?: string;
+
   /**
    * This is a special field that can be used to pass data to
    * middleware. It is not sent with the request, but is available in