diff --git a/types/select2/v3/index.d.ts b/types/select2/v3/index.d.ts
index f4a0c01efb..a74c294906 100644
--- a/types/select2/v3/index.d.ts
+++ b/types/select2/v3/index.d.ts
@@ -168,6 +168,14 @@ interface Select2Plugin {
     (method: 'search'): JQuery;
 
     (options: Select2Options): JQuery;
+
+    /**
+     * Select2 exposes its default options via the $.fn.select2.defaults
+     * object. Properties changed in this object (same properties configurable
+     * through the constructor) will take effect for every instance created
+     * after the change.
+     */
+    defaults: Partial<Select2Options>;
 }
 
 interface JQuery {
diff --git a/types/select2/v3/select2-tests.ts b/types/select2/v3/select2-tests.ts
index 4a0a496e13..af2bdfd583 100644
--- a/types/select2/v3/select2-tests.ts
+++ b/types/select2/v3/select2-tests.ts
@@ -1,3 +1,8 @@
+$.extend($.fn.select2.defaults, {
+  width: 'copy',
+  minimumInputLength: 12
+});
+
 $("#e9").select2();
 $("#e2").select2({
     placeholder: "Select a State",