diff --git a/src/Spout/Reader/XLSX/Sheet.php b/src/Spout/Reader/XLSX/Sheet.php
index 2b35aad..33b57d8 100644
--- a/src/Spout/Reader/XLSX/Sheet.php
+++ b/src/Spout/Reader/XLSX/Sheet.php
@@ -24,7 +24,7 @@ class Sheet implements SheetInterface
     /** @var bool Whether the sheet was the active one */
     protected $isActive;
 
-    /** @var bool Whether the sheet was visible or not */
+    /** @var bool Whether the sheet is visible or not */
     protected $isVisible;
 
     /**
@@ -83,7 +83,7 @@ class Sheet implements SheetInterface
 
      /**
      * @api
-     * @return bool Whether the sheet was visible or not
+     * @return bool Whether the sheet is visible or not
      */
     public function isVisible()
     {
diff --git a/src/Spout/Writer/Common/Sheet.php b/src/Spout/Writer/Common/Sheet.php
index 508d037..6c58ed1 100644
--- a/src/Spout/Writer/Common/Sheet.php
+++ b/src/Spout/Writer/Common/Sheet.php
@@ -33,7 +33,7 @@ class Sheet
     /** @var string Name of the sheet */
     protected $name;
 
-     /** @var bool isVisible visibility of the sheet */
+     /** @var bool Visibility of the sheet */
     protected $isVisible;
 
     /** @var \Box\Spout\Common\Helper\StringHelper */
@@ -83,6 +83,11 @@ class Sheet
         return $this->isVisible;
     }
 
+    /**
+     * @api
+     * @param string $visibility Visibility of the sheet
+     * @return Sheet
+     */
     public function setVisibility($visibility = true)
     {
         $this->isVisible = $visibility;