diff --git a/src/app/code/community/IntegerNet/Solr/Model/Bridge/ProductRepository.php b/src/app/code/community/IntegerNet/Solr/Model/Bridge/ProductRepository.php
index 1d9e163..76f617a 100644
--- a/src/app/code/community/IntegerNet/Solr/Model/Bridge/ProductRepository.php
+++ b/src/app/code/community/IntegerNet/Solr/Model/Bridge/ProductRepository.php
@@ -52,6 +52,13 @@ public function getProductAssociations($productIds)
         foreach ($groupedResourceTypeModel->getChildrenIdsForMultipleParents($productIds) as $parentId => $childrenIds) {
             $associations[$parentId] = $childrenIds;
         }
+        
+        /** @var $bundleResourceTypeModel IntegerNet_Solr_Model_Resource_Catalog_Product_Type_Bundle */
+        $bundleResourceTypeModel = Mage::getResourceModel('integernet_solr/catalog_product_type_bundle');
+        // Don't use array_merge here due to performance reasons
+        foreach ($bundleResourceTypeModel->getChildrenIdsForMultipleParents($productIds) as $parentId => $childrenIds) {
+            $associations[$parentId] = $childrenIds;
+        }
         return array_combine(array_keys($associations), array_map(
             function($parentId, $childrenIds) {
                 return new \IntegerNet\Solr\Indexer\Data\ProductAssociation($parentId, $childrenIds);
diff --git a/src/app/code/community/IntegerNet/Solr/Model/Resource/Catalog/Product/Type/Bundle.php b/src/app/code/community/IntegerNet/Solr/Model/Resource/Catalog/Product/Type/Bundle.php
new file mode 100644
index 0000000..e621972
--- /dev/null
+++ b/src/app/code/community/IntegerNet/Solr/Model/Resource/Catalog/Product/Type/Bundle.php
@@ -0,0 +1,50 @@
+<?php
+/**
+ * integer_net Magento Module
+ *
+ * @category   IntegerNet
+ * @package    IntegerNet_Solr
+ * @copyright  Copyright (c) 2016 integer_net GmbH (http://www.integer-net.de/)
+ * @author     Andreas von Studnitz <avs@integer-net.de>
+ */
+class IntegerNet_Solr_Model_Resource_Catalog_Product_Type_Bundle extends Mage_Bundle_Model_Resource_Selection
+{
+    /**
+     * Retrieve Required children ids
+     * Return grouped array, ex array(
+     *   group => array(ids)
+     * )
+     *
+     * @param null|int[] $parentIds
+     * @return int[][]
+     */
+    public function getChildrenIdsForMultipleParents($parentIds)
+    {
+        $childrenIds = array();
+        $adapter = $this->_getReadAdapter();
+        $select = $adapter->select()
+            ->from(
+                array('tbl_selection' => $this->getMainTable()),
+                array('product_id', 'parent_product_id', 'option_id')
+            )
+            ->join(
+                array('e' => $this->getTable('catalog/product')),
+                'e.entity_id = tbl_selection.product_id AND e.required_options=0',
+                array()
+            )
+            ->join(
+                array('tbl_option' => $this->getTable('bundle/option')),
+                'tbl_option.option_id = tbl_selection.option_id',
+                array('required')
+            );
+        if (!is_null($parentIds)) {
+            $select->where('tbl_selection.parent_product_id IN (?)', $parentIds);
+        }
+
+        foreach ($this->_getReadAdapter()->fetchAll($select) as $row) {
+            $childrenIds[$row['parent_product_id']][$row['product_id']] = $row['product_id'];
+        }
+
+        return $childrenIds;
+    }
+}
\ No newline at end of file