diff --git a/src/HAB/Solr/Command/QueryBuilder.php b/src/HAB/Solr/Command/QueryBuilder.php
index e83ca61173dce83cf90b07c8018efc234efd8ce3..f76d87f58feec24da0383fff7c5115f931aff243 100644
--- a/src/HAB/Solr/Command/QueryBuilder.php
+++ b/src/HAB/Solr/Command/QueryBuilder.php
@@ -42,6 +42,10 @@ class QueryBuilder implements QueryBuilderInterface
      */
     public function buildQuery ($query)
     {
-        return new ParamBag($query);
+        $params = new ParamBag();
+        foreach ($query as $key => $value) {
+            $params->set($key, $value);
+        }
+        return $params;
     }
 }
\ No newline at end of file