diff --git a/op/op.Ajax.php b/op/op.Ajax.php
index b2a68d9b2..3e987b459 100644
--- a/op/op.Ajax.php
+++ b/op/op.Ajax.php
@@ -806,12 +806,14 @@ switch($command) {
 								if(isset($GLOBALS['SEEDDMS_HOOKS']['indexDocument'])) {
 									foreach($GLOBALS['SEEDDMS_HOOKS']['indexDocument'] as $hookObj) {
 										if (method_exists($hookObj, 'preIndexDocument')) {
-											$hookObj->preIndexDocument(null, $document, $idoc);
+											if(false !== ($ires = $hookObj->preIndexDocument(null, $document, $idoc))) {
+												$ires = $index->addDocument($idoc);
+											}
 										}
 									}
 								}
 								header('Content-Type: application/json');
-								if(false === $index->addDocument($idoc)) {
+								if(false === $ires) {
 									echo json_encode(array('success'=>false, 'message'=>getMLText('error_document_indexed'), 'data'=>$document->getID()));
 								} else {
 									echo json_encode(array('success'=>true, 'message'=>getMLText('splash_document_indexed'), 'data'=>$document->getID(), 'cmd'=>$idoc->getCmd()));