diff --git a/Lib/Search/BookSearch.php b/Lib/Search/BookSearch.php
index e327543..44addec 100644
--- a/Lib/Search/BookSearch.php
+++ b/Lib/Search/BookSearch.php
@@ -35,6 +35,14 @@ class BookSearch
         // most options like search fields, sorting, etc are already set
         // as default in the Solr config and thus should be set only on a
         // per request basis when needed
+
+        /* if sometime we need to set the fields explicitly, those should be the ones we want :
+        $this->query->addField('id, code, isbn');
+        $this->query->addField('editor, editorTown, year, producer, producerCode, availabilityDate, collection');
+        $this->query->addField('title, author, reader, summary');
+        $this->query->addField('jeunesse, genre, genreCode, motsMatieres, cdu');
+        $this->query->addField('media, mediaType, cover, samples, zip, zip_size');
+        */
     }
 
     public function addOrQuery(array $texts, $field)
@@ -104,7 +112,7 @@ class BookSearch
 
         try {
             $results = $this->client->query($this->query)->getArrayResponse();
-        } catch(\SolrClientException $e) {
+        } catch(\SolrException $e) {
             throw new WebException ("SolrError", $e->getMessage(), -700);
         }