diff --git a/chrome/content/zotero/xpcom/schema.js b/chrome/content/zotero/xpcom/schema.js
index 4da9a3c47..f758e0ad0 100644
--- a/chrome/content/zotero/xpcom/schema.js
+++ b/chrome/content/zotero/xpcom/schema.js
@@ -2281,7 +2281,7 @@ Zotero.Schema = new function(){
 				}
 			}
 			
-			else if (i == 88) {
+			else if (i == 89) {
 				let groupLibraryMap = {};
 				let libraryGroupMap = {};
 				let resolveLibrary = Zotero.Promise.coroutine(function* (usersOrGroups, id) {
@@ -2319,7 +2319,7 @@ Zotero.Schema = new function(){
 					
 					// Add missing bidirectional from 80
 					if (object.startsWith('users')) {
-						matches = object.match(/^users\/(local\/\w+\/|\d+)items\/([A-Z0-9]{8})$/);
+						matches = object.match(/^users\/(local\/\w+|\d+)\/items\/([A-Z0-9]{8})$/);
 						if (!matches) continue;
 						newSubjectlibraryID = 1;
 						newSubjectKey = matches[2];
diff --git a/resource/schema/userdata.sql b/resource/schema/userdata.sql
index f83257171..0749e3c29 100644
--- a/resource/schema/userdata.sql
+++ b/resource/schema/userdata.sql
@@ -1,4 +1,4 @@
--- 88
+-- 89
 
 -- Copyright (c) 2009 Center for History and New Media
 --                    George Mason University, Fairfax, Virginia, USA