diff --git a/src/Two/AbstractProvider.php b/src/Two/AbstractProvider.php
index 8700fc9e..0623b418 100644
--- a/src/Two/AbstractProvider.php
+++ b/src/Two/AbstractProvider.php
@@ -471,7 +471,7 @@ protected function usesPKCE()
      *
      * @return $this
      */
-    protected function enablePKCE()
+    public function enablePKCE()
     {
         $this->usesPKCE = true;