diff --git a/chrome/content/zotero/xpcom/collectionTreeView.js b/chrome/content/zotero/xpcom/collectionTreeView.js
index fc55a6aff..51c271ebe 100644
--- a/chrome/content/zotero/xpcom/collectionTreeView.js
+++ b/chrome/content/zotero/xpcom/collectionTreeView.js
@@ -104,7 +104,6 @@ Zotero.CollectionTreeView.prototype.reload = function()
 Zotero.CollectionTreeView.prototype.notify = function(action, type, ids)
 {
 	var madeChanges = false;
-	var ids = Zotero.flattenArguments(ids);
 	
 	if(action == 'delete')
 	{
diff --git a/chrome/content/zotero/xpcom/itemTreeView.js b/chrome/content/zotero/xpcom/itemTreeView.js
index 2e488d537..595a265f9 100644
--- a/chrome/content/zotero/xpcom/itemTreeView.js
+++ b/chrome/content/zotero/xpcom/itemTreeView.js
@@ -95,8 +95,6 @@ Zotero.ItemTreeView.prototype.notify = function(action, type, ids)
 	this.selection.selectEventsSuppressed = true;
 	var savedSelection = this.saveSelection();
 	
-	ids = Zotero.flattenArguments(ids);
-	
 	// See if we're in the active window
 	var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
 		.getService(Components.interfaces.nsIWindowMediator);
diff --git a/chrome/content/zotero/xpcom/notifier.js b/chrome/content/zotero/xpcom/notifier.js
index 56cea0252..cc808a4a8 100644
--- a/chrome/content/zotero/xpcom/notifier.js
+++ b/chrome/content/zotero/xpcom/notifier.js
@@ -80,8 +80,10 @@ Zotero.Notifier = new function(){
 				throw('Invalid type ' + type + ' in Notifier.trigger()');
 		}
 		
+		ids = Zotero.flattenArguments(ids);
+		
 		Zotero.debug("Notifier.trigger('" + event + "', '" + type + "', "
-			+ (typeof ids=='object' ? '[' + ids.join() + ']' : ids) + ") called "
+			+ '[' + ids.join() + ']' + ") called "
 			+ "[collection observers: " + _observers['collectionObserver'].length
 			+ ", item observers: " + _observers['itemObserver'].length + "]");