diff --git a/mod/bigbluebuttonbn/classes/external/get_recordings_to_import.php b/mod/bigbluebuttonbn/classes/external/get_recordings_to_import.php
index 8886dc84276..5e195ec4232 100644
--- a/mod/bigbluebuttonbn/classes/external/get_recordings_to_import.php
+++ b/mod/bigbluebuttonbn/classes/external/get_recordings_to_import.php
@@ -193,6 +193,7 @@ class get_recordings_to_import extends external_api {
                     'type' => new external_value(PARAM_ALPHANUMEXT, 'Column type', VALUE_OPTIONAL),
                     'sortable' => new external_value(PARAM_BOOL, 'Whether this column is sortable', VALUE_OPTIONAL, false),
                     'allowHTML' => new external_value(PARAM_BOOL, 'Whether this column contains HTML', VALUE_OPTIONAL, false),
+                    'formatter' => new external_value(PARAM_ALPHANUMEXT, 'Formatter name', VALUE_OPTIONAL),
                 ])),
                 'data' => new external_value(PARAM_RAW), // For now it will be json encoded.
             ], '', VALUE_OPTIONAL),