diff --git a/etc/di.xml b/etc/di.xml
index b479c8b..e01e317 100644
--- a/etc/di.xml
+++ b/etc/di.xml
@@ -22,7 +22,7 @@
     <preference for="Smile\Offer\Api\Data\OfferSearchResultsInterface" type="Magento\Framework\Api\SearchResults" />
 
     <preference for="Smile\Offer\Api\OfferRepositoryInterface" type="Smile\Offer\Model\OfferRepository" />
-    
+
     <preference for="Smile\Offer\Api\OfferManagementInterface" type="Smile\Offer\Model\OfferManagement" />
 
     <preference for="Smile\Offer\Model\Locator\LocatorInterface" type="Smile\Offer\Model\Locator\RegistryLocator"/>
@@ -45,4 +45,16 @@
             </argument>
         </arguments>
     </type>
+    <!-- Datasources resolver -->
+    <type name="Smile\ElasticsuiteCore\Index\Type\DataSourceResolver">
+        <arguments>
+            <argument name="datasources" xsi:type="array">
+                <item name="catalog_product" xsi:type="array">
+                    <item name="product" xsi:type="array">
+                        <item name="offers" xsi:type="object">Smile\Offer\Model\Product\Indexer\Fulltext\Datasource\OfferData</item>
+                    </item>
+                </item>
+            </argument>
+        </arguments>
+    </type>
 </config>
diff --git a/etc/elasticsuite_indices.xml b/etc/elasticsuite_indices.xml
index 6ae42e8..22f85fe 100644
--- a/etc/elasticsuite_indices.xml
+++ b/etc/elasticsuite_indices.xml
@@ -21,10 +21,6 @@
 
     <index identifier="catalog_product" defaultSearchType="product">
         <type name="product" idFieldName="entity_id">
-            <datasources>
-                <datasource name="offers">Smile\Offer\Model\Product\Indexer\Fulltext\Datasource\OfferData</datasource>
-            </datasources>
-            
             <mapping>
                 <!-- Static fields handled by the "offers" datasource -->
                 <field name="offer.offer_id" type="integer" nestedPath="offer" />