diff --git a/x-pack/test/functional/apps/maps/joins.js b/x-pack/test/functional/apps/maps/joins.js
index a3210e61f86a92..a0472e271bb491 100644
--- a/x-pack/test/functional/apps/maps/joins.js
+++ b/x-pack/test/functional/apps/maps/joins.js
@@ -76,7 +76,7 @@ export default function ({ getPageObjects, getService }) {
 
     it('should decorate feature properties with join property', async () => {
       const mapboxStyle = await PageObjects.maps.getMapboxStyle();
-      expect(mapboxStyle.sources[VECTOR_SOURCE_ID].data.features.length).to.equal(8);
+      expect(mapboxStyle.sources[VECTOR_SOURCE_ID].data.features.length).to.equal(10);
 
       mapboxStyle.sources.n1t6f.data.features.forEach(({ properties }) => {
         if (properties.name === 'tango') {