diff --git a/chrome/content/zotero/selectItemsDialog.js b/chrome/content/zotero/selectItemsDialog.js
index c9fe2f64a..febbdfdd8 100644
--- a/chrome/content/zotero/selectItemsDialog.js
+++ b/chrome/content/zotero/selectItemsDialog.js
@@ -44,6 +44,8 @@ function doLoad()
 	if(io.singleSelection) document.getElementById("zotero-items-tree").setAttribute("seltype", "single");
 	
 	collectionsView = new Zotero.CollectionTreeView();
+	// Don't show Commons when citing
+	collectionsView.showCommons = false;
 	document.getElementById('zotero-collections-tree').view = collectionsView;
 	if(io.select) itemsView.selectItem(io.select);
 }
diff --git a/chrome/content/zotero/xpcom/collectionTreeView.js b/chrome/content/zotero/xpcom/collectionTreeView.js
index 1ca88dda6..d4db7c8a5 100644
--- a/chrome/content/zotero/xpcom/collectionTreeView.js
+++ b/chrome/content/zotero/xpcom/collectionTreeView.js
@@ -32,7 +32,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 /*
- *  Constructor the the CollectionTreeView object
+ *  Constructor for the CollectionTreeView object
  */
 Zotero.CollectionTreeView = function()
 {
@@ -41,6 +41,7 @@ Zotero.CollectionTreeView = function()
 	this._highlightedRows = {};
 	this._unregisterID = Zotero.Notifier.registerObserver(this, ['collection', 'search', 'share', 'group', 'bucket']);
 	this.showDuplicates = false;
+	this.showCommons = true;
 }
 
 /*
@@ -250,7 +251,7 @@ Zotero.CollectionTreeView.prototype.refresh = function()
 		}
 	}
 	
-	if (Zotero.Commons.enabled) {
+	if (this.showCommons && Zotero.Commons.enabled) {
 		this._showItem(new Zotero.ItemGroup('separator', false));
 		var header = {
 			id: "commons-header",
@@ -860,14 +861,13 @@ Zotero.CollectionTreeView.prototype._hideItem = function(row)
 }
 
 /*
- *  Returns a reference to the collection at row (see Zotero.Collection in data_access.js)
+ * Returns Zotero.ItemGroup at row
  */
 Zotero.CollectionTreeView.prototype._getItemAtRow = function(row)
 {
 	return this._dataItems[row][0];
 }
 
-
 /*
  *  Saves the ids of the currently selected item for later
  */