diff --git a/backend/src/ploneorg/src/ploneorg/profiles/default/catalog.xml b/backend/src/ploneorg/src/ploneorg/profiles/default/catalog.xml
index 4ec142b..8b376a7 100644
--- a/backend/src/ploneorg/src/ploneorg/profiles/default/catalog.xml
+++ b/backend/src/ploneorg/src/ploneorg/profiles/default/catalog.xml
@@ -10,11 +10,13 @@
   >
     <indexed_attr value="is_provider" />
   </index>
-  <index name="recurrence" meta_type="FieldIndex">
-    <indexed_attr value="recurrence"/>
+  <index meta_type="FieldIndex"
+         name="recurrence"
+  >
+    <indexed_attr value="recurrence" />
   </index>
   <column value="sponsorship_type" />
   <column value="is_provider" />
-  <column value="recurrence"/>
+  <column value="recurrence" />
 
 </object>