diff --git a/search_api_ranges.module b/search_api_ranges.module
index ec7c254..3db006d 100644
--- a/search_api_ranges.module
+++ b/search_api_ranges.module
@@ -183,9 +183,17 @@ function search_api_ranges_minmax($variables, $order = 'ASC') {
 
   $result_ids = array();
   foreach ($results['results'] as $result) {
-    $result_ids[] = $result['id'];
+    // Support search_api_et module (multilingual indexes)
+    if (strpos($index->item_type, 'search_api_et_') !== FALSE) {
+      // search_api_et prefixes the entity id with a language code, so we'll
+      // just remove any non-numeric characters to get the entity id
+      $result_ids[] = preg_replace('/[^0-9]/', '', $result['id']);
+    }
+    else {
+      $result_ids[] = $result['id'];
+    }
   }
-  $entities = entity_load($index->item_type, $result_ids);
+  $entities = entity_load($index->getEntityType(), $result_ids);
 
   $index->dataAlter($entities);
 
@@ -687,4 +695,4 @@ function search_api_ranges_map_label(array $values, array $options) {
   }
 
   return $map;
-}
\ No newline at end of file
+}