diff --git a/chrome/content/zotero/xpcom/schema.js b/chrome/content/zotero/xpcom/schema.js
index fda5008c5..d89863f4e 100644
--- a/chrome/content/zotero/xpcom/schema.js
+++ b/chrome/content/zotero/xpcom/schema.js
@@ -2476,7 +2476,7 @@ Zotero.Schema = new function(){
 				if (i==64) {
 					Zotero.DB.query("ALTER TABLE syncDeleteLog RENAME TO syncDeleteLogOld");
 					Zotero.DB.query("CREATE TABLE syncDeleteLog (\n    syncObjectTypeID INT NOT NULL,\n    libraryID INT NOT NULL,\n    key TEXT NOT NULL,\n    timestamp INT NOT NULL,\n    UNIQUE (syncObjectTypeID, libraryID, key),\n    FOREIGN KEY (syncObjectTypeID) REFERENCES syncObjectTypes(syncObjectTypeID)\n)");
-					Zotero.DB.query("INSERT INTO syncDeleteLog SELECT * FROM syncDeleteLogOld");
+					Zotero.DB.query("INSERT INTO syncDeleteLog SELECT syncObjectTypeID, IFNULL(libraryID, 0) AS libraryID, key, timestamp FROM syncDeleteLogOld");
 					Zotero.DB.query("DROP TABLE syncDeleteLogOld");
 				}