diff --git a/apachesolr_multilingual.module b/apachesolr_multilingual.module
index 51e3166..10893d1 100644
--- a/apachesolr_multilingual.module
+++ b/apachesolr_multilingual.module
@@ -538,8 +538,9 @@ function apachesolr_multilingual_apachesolr_query_alter($query) {
     }
     else {
       // A custom query has been created by a third party module.
-      // Assume default multilingual settings.
+      // Skip query altering.
       // TODO This behavior should be somehow configurable.
+      return;
     }
     // Add defaults for required settings to not yet saved multilingual custom settings.
     apachesolr_multilingual_search_page_settings_add_defaults($custom_settings);