diff --git a/chrome/content/zotero/xpcom/schema.js b/chrome/content/zotero/xpcom/schema.js
index d5fb0a555..5861cb2a4 100644
--- a/chrome/content/zotero/xpcom/schema.js
+++ b/chrome/content/zotero/xpcom/schema.js
@@ -118,7 +118,6 @@ Zotero.Schema = new function(){
 				
 				var up1 = _migrateUserDataSchema(dbVersion);
 				var up2 = _updateSchema('system');
-				var up3 = _updateSchema('scrapers');
 				
 				Zotero.DB.commitTransaction();
 			}
@@ -128,6 +127,14 @@ Zotero.Schema = new function(){
 				throw(e);
 			}
 			
+			try {
+				var up3 = _updateSchema('scrapers');
+			}
+			catch (e) {
+				Zotero.debug(e, 1);
+				throw(e);
+			}
+			
 			// Workaround for upgrade error in step 35
 			if (_fulltextItemWordsCache) {
 				Zotero.DB.beginTransaction();