diff --git a/chrome/content/zotero/xpcom/collectionTreeView.js b/chrome/content/zotero/xpcom/collectionTreeView.js
index c2b2c89d5..d100d027d 100644
--- a/chrome/content/zotero/xpcom/collectionTreeView.js
+++ b/chrome/content/zotero/xpcom/collectionTreeView.js
@@ -1220,7 +1220,7 @@ Zotero.CollectionTreeView.prototype._expandRow = Zotero.Promise.coroutine(functi
 	}
 	
 	if (isLibrary) {
-		var collections = Zotero.Collections.getByLibrary(libraryID, treeRow.ref.id);
+		var collections = Zotero.Collections.getByLibrary(libraryID);
 	}
 	else if (isCollection) {
 		var collections = Zotero.Collections.getByParent(treeRow.ref.id);
diff --git a/test/tests/collectionTreeViewTest.js b/test/tests/collectionTreeViewTest.js
index c1ee3fba5..745c93826 100644
--- a/test/tests/collectionTreeViewTest.js
+++ b/test/tests/collectionTreeViewTest.js
@@ -139,6 +139,26 @@ describe("Zotero.CollectionTreeView", function() {
 			assert.ok(cv.getRowIndexByID(col2.treeViewID))
 			assert.ok(cv.getRowIndexByID(col3.treeViewID))
 		});
+		
+		it("should open a group and show top-level collections", function* () {
+			var group = yield createGroup();
+			var libraryID = group.libraryID;
+			var col1 = yield createDataObject('collection', { libraryID });
+			var col2 = yield createDataObject('collection', { libraryID });
+			var col3 = yield createDataObject('collection', { libraryID });
+			var col4 = yield createDataObject('collection', { libraryID, parentID: col1.id });
+			var col5 = yield createDataObject('collection', { libraryID, parentID: col4.id });
+			
+			// Close everything
+			[col4, col1, group].forEach(o => cv._closeContainer(cv.getRowIndexByID(o.treeViewID)));
+			
+			yield cv.expandLibrary(libraryID);
+			assert.isNumber(cv.getRowIndexByID(col1.treeViewID));
+			assert.isNumber(cv.getRowIndexByID(col2.treeViewID));
+			assert.isNumber(cv.getRowIndexByID(col3.treeViewID));
+			assert.isFalse(cv.getRowIndexByID(col4.treeViewID));
+			assert.isFalse(cv.getRowIndexByID(col5.treeViewID));
+		});
 	});
 	
 	describe("#expandToCollection()", function () {