diff --git a/chrome/content/zotero/xpcom/schema.js b/chrome/content/zotero/xpcom/schema.js
index 860274ce9b..511f912c66 100644
--- a/chrome/content/zotero/xpcom/schema.js
+++ b/chrome/content/zotero/xpcom/schema.js
@@ -2441,6 +2441,16 @@ Zotero.Schema = new function(){
 				}
 			}
 			
+			else if (i == 102) {
+				let userID = yield Zotero.DB.valueQueryAsync("SELECT value FROM settings WHERE setting='account' AND key='userID'");
+				if (userID && typeof userID == 'string') {
+					userID = userID.trim();
+					if (userID) {
+						yield Zotero.DB.queryAsync("UPDATE settings SET value=? WHERE setting='account' AND key='userID'", parseInt(userID));
+					}
+				}
+			}
+			
 			// If breaking compatibility or doing anything dangerous, clear minorUpdateFrom
 		}
 		
diff --git a/resource/schema/userdata.sql b/resource/schema/userdata.sql
index 9685169fbe..dad8791a4e 100644
--- a/resource/schema/userdata.sql
+++ b/resource/schema/userdata.sql
@@ -1,4 +1,4 @@
--- 101
+-- 102
 
 -- Copyright (c) 2009 Center for History and New Media
 --                    George Mason University, Fairfax, Virginia, USA