diff --git a/src/core/BufferAttribute.js b/src/core/BufferAttribute.js
index 18be8bb7e7e79ac90ccff090bdd5751bc3ae0d0c..aed5087bcf4a0a40e8b7a9a3bda26ead59587f04 100644
--- a/src/core/BufferAttribute.js
+++ b/src/core/BufferAttribute.js
@@ -331,7 +331,7 @@ BufferAttribute.prototype = {
 
 	clone: function () {
 
-		return new this.constructor().copy( this );
+		return new this.constructor( this.array, this.itemSize ).copy( this );
 
 	}