diff --git a/src/App/Models/Value.php b/src/App/Models/Value.php
index 5c99d62..92c23ae 100644
--- a/src/App/Models/Value.php
+++ b/src/App/Models/Value.php
@@ -101,7 +101,7 @@ public static function validateCreate(Request $request): void
 
         self::filterByAllowedColumn($valueColumn, $request);
 
-        throw_if(!$request->has($valueColumn) || empty($request->get($valueColumn)),
+        throw_if(!$request->has($valueColumn) || is_null($request->get($valueColumn)),
             new Exception("Attribute '$valueColumn' needs to be provided."));
 
         $customField->validate($request->get($valueColumn));