diff --git a/doc/howtos/backend.rst b/doc/howtos/backend.rst
index ff5d56a584c..7eef640326d 100644
--- a/doc/howtos/backend.rst
+++ b/doc/howtos/backend.rst
@@ -1043,9 +1043,9 @@ their most common attributes are:
 ``date_start``
     record's field holding the start date/time for the event
 ``date_stop`` (optional)
-    record's field holding the end date/time for the event
-
-field (to define the label for each calendar event)
+    record's field holding the end date/time for the event
+``string``
+    record's field to define the label for each calendar event
 
 .. code-block:: xml