diff --git a/Classes/Controller/FrontEndEditorController.php b/Classes/Controller/FrontEndEditorController.php
index 19e0fe1..8b2c50c 100644
--- a/Classes/Controller/FrontEndEditorController.php
+++ b/Classes/Controller/FrontEndEditorController.php
@@ -42,7 +42,10 @@ class FrontEndEditorController extends ActionController
      */
     private function getUidOfLoggedInUser(): int
     {
-        return $this->context->getPropertyFromAspect('frontend.user', 'id');
+        $userUid = $this->context->getPropertyFromAspect('frontend.user', 'id');
+        \assert(\is_int($userUid) && $userUid >= 0);
+
+        return $userUid;
     }
 
     /**
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 5e1924b..aab4991 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -1,6 +1,2 @@
 parameters:
-	ignoreErrors:
-		-
-			message: "#^Method TTN\\\\Tea\\\\Controller\\\\FrontEndEditorController\\:\\:getUidOfLoggedInUser\\(\\) should return int\\<0, max\\> but returns mixed\\.$#"
-			count: 1
-			path: Classes/Controller/FrontEndEditorController.php
+	ignoreErrors: []