diff -r bd2701bd8142 -r 4ab820b387da server/src/app/Libraries/CocoonUtils.php
--- a/server/src/app/Libraries/CocoonUtils.php	Wed Feb 08 16:38:09 2017 +0100
+++ b/server/src/app/Libraries/CocoonUtils.php	Thu Feb 09 15:05:36 2017 +0100
@@ -47,7 +47,7 @@
      * @return string
      */
     public static function getCocoonIdFromCorpusUri($uri) {
-        return substr($uri, strlen(config('corpusparole.cocoon_doc_id_base_uri')));
+        return substr($uri, strlen(config('corpusparole.corpus_doc_id_base_uri')));
     }
 
     /**