diff --git a/app/code/Magento/Catalog/Controller/Category/View.php b/app/code/Magento/Catalog/Controller/Category/View.php
index 9d7bf1dfb361e..e31b1a17ecdc3 100644
--- a/app/code/Magento/Catalog/Controller/Category/View.php
+++ b/app/code/Magento/Catalog/Controller/Category/View.php
@@ -111,7 +111,7 @@ public function __construct(
     /**
      * Initialize requested category object
      *
-     * @return \Magento\Catalog\Model\Category
+     * @return \Magento\Catalog\Model\Category|bool
      */
     protected function _initCategory()
     {
diff --git a/app/code/Magento/CatalogSearch/Model/Indexer/Fulltext/Action/DataProvider.php b/app/code/Magento/CatalogSearch/Model/Indexer/Fulltext/Action/DataProvider.php
index 3846db93dbd5a..381fb573b21a1 100644
--- a/app/code/Magento/CatalogSearch/Model/Indexer/Fulltext/Action/DataProvider.php
+++ b/app/code/Magento/CatalogSearch/Model/Indexer/Fulltext/Action/DataProvider.php
@@ -532,7 +532,7 @@ private function getProductEmulator($typeId)
      * @param array $indexData
      * @param array $productData
      * @param int $storeId
-     * @return string
+     * @return array
      * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      * @since 100.0.3
      */
diff --git a/app/code/Magento/CatalogSearch/Model/ResourceModel/EngineInterface.php b/app/code/Magento/CatalogSearch/Model/ResourceModel/EngineInterface.php
index df1f9c89791f6..fd00664a225e9 100644
--- a/app/code/Magento/CatalogSearch/Model/ResourceModel/EngineInterface.php
+++ b/app/code/Magento/CatalogSearch/Model/ResourceModel/EngineInterface.php
@@ -55,7 +55,7 @@ public function processAttributeValue($attribute, $value);
      *
      * @param array $index
      * @param string $separator
-     * @return string
+     * @return array
      */
     public function prepareEntityIndex($index, $separator = ' ');
 }