diff --git a/defaults/preferences/zotero.js b/defaults/preferences/zotero.js
index 0e0864f2b..e1669216c 100644
--- a/defaults/preferences/zotero.js
+++ b/defaults/preferences/zotero.js
@@ -1,4 +1,7 @@
-// These are DEFAULT prefs for the INSTALL. You will have to reinstall the extension to see differences!
+// These are DEFAULT prefs for the install.
+//
+// Add new user-adjustable hidden preferences to
+// http://www.zotero.org/documentation/hidden_prefs
 
 pref("extensions.zotero.firstRun", true);
 pref("extensions.zotero@chnm.gmu.edu.description", "chrome://zotero/locale/zotero.properties");