diff --git a/src/item/Group.js b/src/item/Group.js
index ca1954fd..937f2c0d 100644
--- a/src/item/Group.js
+++ b/src/item/Group.js
@@ -75,6 +75,8 @@ var Group = this.Group = Item.extend({
 	},
 
 	_changed: function(flags) {
+		// Don't use base() for reasons of performance.
+		Item.prototype._changed.call(this, flags);
 		if (flags & (ChangeFlag.HIERARCHY | ChangeFlag.CLIPPING)) {
 			// Clear cached clip item whenever hierarchy changes
 			delete this._clipItem;
diff --git a/src/path/Path.js b/src/path/Path.js
index b36ab8d4..bcab8436 100644
--- a/src/path/Path.js
+++ b/src/path/Path.js
@@ -60,9 +60,9 @@ var Path = this.Path = PathItem.extend({
 	},
 
 	_changed: function(flags) {
+		// Don't use base() for reasons of performance.
+		Item.prototype._changed.call(this, flags);
 		if (flags & ChangeFlag.GEOMETRY) {
-			delete this._bounds;
-			delete this._position;
 			delete this._strokeBounds;
 			delete this._length;
 			// Clockwise state becomes undefined as soon as geometry changes.