diff --git a/library/Class/Notice/Thumbnail/ProviderThirdParty.php b/library/Class/Notice/Thumbnail/ProviderThirdParty.php
index ee9158439f762c00184caa1deae736d34ef803fc..8d681524072f438dd89f94ce8b4fd49f5443a261 100644
--- a/library/Class/Notice/Thumbnail/ProviderThirdParty.php
+++ b/library/Class/Notice/Thumbnail/ProviderThirdParty.php
@@ -37,7 +37,7 @@ class Class_Notice_Thumbnail_ProviderThirdParty
                             'thumbnail_fields');
     $datas = explode(';', $thumbnail);
     foreach ($datas as $data) {
-      list($zone, $field) = explode('$', $data);
+      list($zone, $field) = explode('-', $data);
       $subfields = $this->_record->get_subfield($zone, $field);
       $image = empty($subfields) ? null : $this->_getFirstImage($subfields);
       if ($image)
diff --git a/tests/library/Class/NoticeTest.php b/tests/library/Class/NoticeTest.php
index 66d67373c5aaa132327a3d0875e74bc5452b075e..145e5c67ff15187f32de6222fdf227ec4936df5d 100644
--- a/tests/library/Class/NoticeTest.php
+++ b/tests/library/Class/NoticeTest.php
@@ -110,7 +110,7 @@ class NoticeVignetteTest extends Storm_Test_ModelTestCase {
 
 
 
-    $preferences= [ 'thumbnail_fields' => '700$a;856$u'];
+    $preferences= [ 'thumbnail_fields' => '700-a;856-u'];
     Class_Profil::getCurrentProfil()
       ->setCfgModules(['recherche' => ['viewnotice'.Class_TypeDoc::DISQUE => $preferences]]);
 
@@ -223,7 +223,7 @@ class NoticeVignetteTest extends Storm_Test_ModelTestCase {
 
   /** @test */
   public function unexistingUrlThumbnailShoudFallbackToCacheServer() {
-    $preferences= [ 'thumbnail_fields' => '856$g'];
+    $preferences= [ 'thumbnail_fields' => '856-g'];
     Class_Profil::getCurrentProfil()
       ->setCfgModules(['recherche' => ['viewnotice'.Class_TypeDoc::DISQUE => $preferences]]);