diff --git a/op/op.Ajax.php b/op/op.Ajax.php
index 604b9a8b3..9e85f33c1 100644
--- a/op/op.Ajax.php
+++ b/op/op.Ajax.php
@@ -684,6 +684,44 @@ switch($command) {
 		}
 		break; /* }}} */
 
+	case 'setoriginalname': /* {{{ */
+		if($user && $user->isAdmin()) {
+			if(checkFormKey('setoriginalname')) {
+				$content = $dms->getDocumentContent($_REQUEST['contentid']);
+				if($content) {
+					$document = $content->getDocument();
+					if ($document->getAccessMode($user) >= M_READWRITE) {
+						$oldname = $content->getOriginalFileName();
+						if (!$content->setOriginalFilename($_REQUEST['name'])) {
+							header('Content-Type: application/json');
+							echo json_encode(array('success'=>false, 'message'=>'Error setting original file name', 'data'=>''));
+						} else {
+							if($fulltextservice && ($index = $fulltextservice->Indexer())) {
+								$lucenesearch = $fulltextservice->Search();
+								if($hit = $lucenesearch->getDocument($document->getId())) {
+									$index->reindexDocument($hit->id);
+									$index->commit();
+								}
+							}
+							header('Content-Type: application/json');
+							echo json_encode(array('success'=>true, 'message'=>getMLText('splash_orig_filename_changed'), 'data'=>''));
+							add_log_line("set original filename '".$_REQUEST['name']."' of document ".$document->getId().":".$content->getVersion());
+						}
+					} else {
+						header('Content-Type: application/json');
+						echo json_encode(array('success'=>false, 'message'=>getMLText('access_denied'), 'data'=>''));
+					}
+				} else {
+					header('Content-Type: application/json');
+					echo json_encode(array('success'=>false, 'message'=>getMLText('invalid_doc_id'), 'data'=>''));
+				}
+			} else {
+				header('Content-Type: application/json');
+				echo json_encode(array('success'=>false, 'message'=>getMLText('invalid_request_token'), 'data'=>''));
+			}
+		}
+		break; /* }}} */
+
 	case 'setmimetype': /* {{{ */
 		if($user && $user->isAdmin()) {
 			if(checkFormKey('setmimetype', 'GET')) {