diff --git a/src/Forms/TabSet.php b/src/Forms/TabSet.php
index da18e9d48b4..6119fc999ac 100644
--- a/src/Forms/TabSet.php
+++ b/src/Forms/TabSet.php
@@ -43,6 +43,13 @@ class TabSet extends CompositeField
      */
     protected $schemaComponent = 'Tabs';
 
+    /**
+     * Alter datatype from structural to track the current tab in redux state.
+     *
+     * @var string
+     */
+    protected $schemaDataType = FormField::SCHEMA_DATA_TYPE_STRING;
+
     /**
      * @var TabSet
      */