diff --git a/prods/src/RODSConn.class.php b/prods/src/RODSConn.class.php
index d460e27..1b6f0ac 100644
--- a/prods/src/RODSConn.class.php
+++ b/prods/src/RODSConn.class.php
@@ -958,8 +958,9 @@ public function fileUnlink($path, $rescname = NULL, $force = false) {
      */
     public function closeFileDesc($l1desc) {
         try {
-            $dataObjCloseInp_pk = new RP_dataObjCloseInp($l1desc);
-            $msg = new RODSMessage("RODS_API_REQ_T", $dataObjCloseInp_pk, $GLOBALS['PRODS_API_NUMS']['DATA_OBJ_CLOSE_AN']);
+
+            $openedDataObjInp = new RP_OpenedDataObjInp($l1desc);
+            $msg = new RODSMessage("RODS_API_REQ_T", $openedDataObjInp, $GLOBALS['PRODS_API_NUMS']['OPENED_DATA_OBJ_CLOSE_AN']);
             fwrite($this->conn, $msg->pack()); // send it
             // get value back
             $msg = new RODSMessage();
diff --git a/prods/src/RodsAPINum.inc.php b/prods/src/RodsAPINum.inc.php
index cb824ff..ddef9ee 100644
--- a/prods/src/RodsAPINum.inc.php
+++ b/prods/src/RodsAPINum.inc.php
@@ -90,6 +90,7 @@
     'CLOSE_COLLECTION_AN' => '661',
     'COLL_REPL_AN' => '662',
     'RM_COLL_AN' => '663',
+    'OPENED_DATA_OBJ_CLOSE_AN' => '673',
     'OPENED_DATA_OBJ_WRITE_AN' => '676',
     'GET_MISC_SVR_INFO_AN' => '700',
     'GENERAL_ADMIN_AN' => '701',
@@ -198,6 +199,7 @@
     '662' => 'COLL_REPL_AN',
     '663' => 'RM_COLL_AN',
     '676' => 'OPENED_DATA_OBJ_WRITE_AN',
+    '673' => 'OPENED_DATA_OBJ_CLOSE_AN',
     '700' => 'GET_MISC_SVR_INFO_AN',
     '701' => 'GENERAL_ADMIN_AN',
     '702' => 'GEN_QUERY_AN',