diff --git a/README.md b/README.md
index 3a3a50c..5335c3c 100644
--- a/README.md
+++ b/README.md
@@ -263,7 +263,7 @@ Company-scoped POS terminals. Auth via `resolveCompanyAccess`.
 
 | Method | Signature | Returns |
 | --- | --- | --- |
-| `listSearchIndex` | `(googleAuthId, companyId)` | `[{ id, sku, name, eans }]` |
+| `listSearchIndex` | `(googleAuthId, companyId)` | `[{ id, sku, name, eans, categoryIds }]` |
 | `createUnderParent` | `({ googleAuthId, parentId, name })` | `{ id, parentId, name, sku }` |
 | `getBySku` | `(googleAuthId, sku)` | detail object (see below) |
 | `updateBySku` | `(googleAuthId, sku, { name?, unitamount?, unitSi? })` | same shape as `getBySku` |