diff --git a/select2.js b/select2.js
index bd1f2da5..45906ff7 100644
--- a/select2.js
+++ b/select2.js
@@ -3185,7 +3185,7 @@ the specific language governing permissions and limitations under the Apache Lic
                     if ("tags" in opts) {opts.multiple = multiple = true;}
                 }
 
-                select2 = multiple ? new MultiSelect2() : new SingleSelect2();
+                select2 = multiple ? new window.Select2["class"].multi() : window.Select2["class"].single();
                 select2.init(opts);
             } else if (typeof(args[0]) === "string") {