diff --git a/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php b/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php
index 096750baf3ea2..08126378a5bad 100644
--- a/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php
+++ b/lib/internal/Magento/Framework/View/Element/UiComponent/DataProvider/DataProvider.php
@@ -123,7 +123,7 @@ protected function prepareUpdateUrl()
             }
             if ($paramValue) {
                 $this->data['config']['update_url'] = sprintf(
-                    '%s%s/%s',
+                    '%s%s/%s/',
                     $this->data['config']['update_url'],
                     $paramName,
                     $paramValue