diff --git a/apps/files_reminders/lib/Notification/Notifier.php b/apps/files_reminders/lib/Notification/Notifier.php
index 000b04119cd..fd858a01cc5 100644
--- a/apps/files_reminders/lib/Notification/Notifier.php
+++ b/apps/files_reminders/lib/Notification/Notifier.php
@@ -75,7 +75,7 @@ class Notifier implements INotifier {
 						[
 							'name' => [
 								'type' => 'highlight',
-								'id' => $node->getId(),
+								'id' => (string)$node->getId(),
 								'name' => $node->getName(),
 							],
 						],
diff --git a/build/psalm-baseline.xml b/build/psalm-baseline.xml
index 4b4f232fad6..e05423a3fbf 100644
--- a/build/psalm-baseline.xml
+++ b/build/psalm-baseline.xml
@@ -872,6 +872,12 @@
       <code><![CDATA[test]]></code>
     </TooManyArguments>
   </file>
+  <file src="apps/files_reminders/lib/Model/RichReminder.php">
+    <ConstructorSignatureMismatch>
+      <code><![CDATA[public function __construct(]]></code>
+      <code><![CDATA[public function __construct(]]></code>
+    </ConstructorSignatureMismatch>
+  </file>
   <file src="apps/files_sharing/lib/Controller/ShareAPIController.php">
     <RedundantCast>
       <code><![CDATA[(int)$code]]></code>
diff --git a/psalm.xml b/psalm.xml
index bd2b9675743..276760a1fef 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -30,6 +30,7 @@
 		<directory name="apps/federation"/>
 		<directory name="apps/files"/>
 		<directory name="apps/files_external"/>
+		<directory name="apps/files_reminders"/>
 		<directory name="apps/files_sharing"/>
 		<directory name="apps/files_trashbin"/>
 		<directory name="apps/files_versions"/>