diff --git a/lib/private/AppFramework/Utility/TimeFactory.php b/lib/private/AppFramework/Utility/TimeFactory.php
index 30d38d9bde..fc3bf72609 100644
--- a/lib/private/AppFramework/Utility/TimeFactory.php
+++ b/lib/private/AppFramework/Utility/TimeFactory.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /**
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  *
@@ -22,7 +23,6 @@
  *
  */
 
-
 namespace OC\AppFramework\Utility;
 
 use OCP\AppFramework\Utility\ITimeFactory;
@@ -37,7 +37,7 @@ class TimeFactory implements ITimeFactory {
 	/**
 	 * @return int the result of a call to time()
 	 */
-	public function getTime() {
+	public function getTime() : int {
 		return time();
 	}
 
diff --git a/lib/public/AppFramework/Utility/ITimeFactory.php b/lib/public/AppFramework/Utility/ITimeFactory.php
index eb65abf850..7951d6ad8e 100644
--- a/lib/public/AppFramework/Utility/ITimeFactory.php
+++ b/lib/public/AppFramework/Utility/ITimeFactory.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 /**
  * @copyright Copyright (c) 2016, ownCloud, Inc.
  *
@@ -21,7 +22,6 @@
  *
  */
 
-
 namespace OCP\AppFramework\Utility;
 
 
@@ -35,6 +35,6 @@ interface ITimeFactory {
 	 * @return int the result of a call to time()
 	 * @since 8.0.0
 	 */
-	public function getTime();
+	public function getTime() : int;
 
 }