diff --git a/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/breadcrumbs.ts b/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/breadcrumbs.ts
index 453c2f6994..1b6c22f369 100644
--- a/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/breadcrumbs.ts
+++ b/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/breadcrumbs.ts
@@ -9,6 +9,7 @@ const createBreadcrumbsField = (relationTo: string, overrides: Partial<Field> =
       name: 'doc',
       type: 'relationship',
       relationTo,
+      maxDepth: 1,
       admin: {
         disabled: true,
       },
diff --git a/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/parent.ts b/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/parent.ts
index c02522f0ae..456304d030 100644
--- a/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/parent.ts
+++ b/packages/plugin-nested-docs/src/plugins/breadcrumbs/fields/parent.ts
@@ -5,6 +5,7 @@ const createParentField = (relationTo: string, overrides: Partial<Field> = {}):
   name: 'parent',
   relationTo,
   type: 'relationship',
+  maxDepth: 1,
   admin: {
     position: 'sidebar',
   },