diff --git a/chrome/content/zotero/xpcom/sync.js b/chrome/content/zotero/xpcom/sync.js
index 5f157ac97..c4062d1df 100644
--- a/chrome/content/zotero/xpcom/sync.js
+++ b/chrome/content/zotero/xpcom/sync.js
@@ -460,7 +460,7 @@ Zotero.Sync.Server = new function () {
 	var _loginManagerHost = 'chrome://zotero';
 	var _loginManagerURL = 'Zotero Sync Server';
 	
-	var _serverURL = "https://sync.zotero.org/";
+	var _serverURL = ZOTERO_CONFIG.SYNC_URL;
 	
 	var _maxAttempts = 3;
 	var _attempts = _maxAttempts;
diff --git a/chrome/content/zotero/xpcom/zotero.js b/chrome/content/zotero/xpcom/zotero.js
index 237dcdee9..dde6888b2 100644
--- a/chrome/content/zotero/xpcom/zotero.js
+++ b/chrome/content/zotero/xpcom/zotero.js
@@ -25,7 +25,8 @@ const ZOTERO_CONFIG = {
 	DB_REBUILD: false, // erase DB and recreate from schema
 	REPOSITORY_URL: 'http://www.zotero.org/repo',
 	REPOSITORY_CHECK_INTERVAL: 86400, // 24 hours
-	REPOSITORY_RETRY_INTERVAL: 3600 // 1 hour
+	REPOSITORY_RETRY_INTERVAL: 3600, // 1 hour
+	SYNC_URL: 'http://sync.zotero.org/'
 };
 
 /*