diff --git a/x-pack/test/api_integration/apis/endpoint/resolver.ts b/x-pack/test/api_integration/apis/endpoint/resolver.ts
index d333a39714907..ace32111005f4 100644
--- a/x-pack/test/api_integration/apis/endpoint/resolver.ts
+++ b/x-pack/test/api_integration/apis/endpoint/resolver.ts
@@ -246,7 +246,6 @@ export default function resolverAPIIntegrationTests({ getService }: FtrProviderC
     percentWithRelated: 100,
     numTrees: 1,
     alwaysGenMaxChildrenPerNode: true,
-    useAncestryArray: true,
     ancestryArraySize: 2,
   };