diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index d640e13..bcb42ee 100755
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -1009,10 +1009,13 @@ final class ApiController extends Controller
 
         $attrValue            = new TaskAttributeValue();
         $attrValue->isDefault = $request->getDataBool('default') ?? false;
-        $attrValue->setValue($request->getData('value'), $type->datatype);
+        $attrValue->setValue($request->getDataString('value'), $type->datatype);
 
         if ($request->hasData('title')) {
-            $attrValue->setL11n($request->getDataString('title') ?? '', $request->getDataString('language') ?? ISO639x1Enum::_EN);
+            $attrValue->setL11n(
+                $request->getDataString('title') ?? '',
+                $request->getDataString('language') ?? ISO639x1Enum::_EN
+            );
         }
 
         return $attrValue;