diff --git a/app/code/Magento/CatalogRule/Controller/Adminhtml/Promo/Widget/CategoriesJson.php b/app/code/Magento/CatalogRule/Controller/Adminhtml/Promo/Widget/CategoriesJson.php
index df588e79f7117..4d221534c22c4 100644
--- a/app/code/Magento/CatalogRule/Controller/Adminhtml/Promo/Widget/CategoriesJson.php
+++ b/app/code/Magento/CatalogRule/Controller/Adminhtml/Promo/Widget/CategoriesJson.php
@@ -32,7 +32,7 @@ public function __construct(Context $context, Registry $coreRegistry)
     /**
      * Initialize category object in registry
      *
-     * @return Category
+     * @return Category|bool
      */
     protected function _initCategory()
     {
diff --git a/app/code/Magento/CatalogSearch/Model/ResourceModel/Engine.php b/app/code/Magento/CatalogSearch/Model/ResourceModel/Engine.php
index 16c7888eb4821..e68bb5eeec59a 100644
--- a/app/code/Magento/CatalogSearch/Model/ResourceModel/Engine.php
+++ b/app/code/Magento/CatalogSearch/Model/ResourceModel/Engine.php
@@ -102,7 +102,7 @@ public function processAttributeValue($attribute, $value)
      *
      * @param array $index
      * @param string $separator
-     * @return string
+     * @return array
      */
     public function prepareEntityIndex($index, $separator = ' ')
     {
diff --git a/app/code/Magento/UrlRewrite/Service/V1/Data/UrlRewrite.php b/app/code/Magento/UrlRewrite/Service/V1/Data/UrlRewrite.php
index 2d3807a635c6e..716d87afbf0c7 100644
--- a/app/code/Magento/UrlRewrite/Service/V1/Data/UrlRewrite.php
+++ b/app/code/Magento/UrlRewrite/Service/V1/Data/UrlRewrite.php
@@ -58,7 +58,7 @@ public function getUrlRewriteId()
 
     /**
      * @param int $urlRewriteId
-     * @return int
+     * @return $this
      */
     public function setUrlRewriteId($urlRewriteId)
     {