diff --git a/src/Container.php b/src/Container.php
index f288b9d..ae103e7 100644
--- a/src/Container.php
+++ b/src/Container.php
@@ -135,7 +135,7 @@ public function call($callback, $map = [])
     public function create($class_name, $map = [])
     {
         if (! class_exists($class_name)) {
-            throw new InvalidArgumentException("unable to create component: {$class_name}");
+            throw new InvalidArgumentException("unable to create component: {$class_name} (autoloading failed)");
         }
 
         $reflection = new ReflectionClass($class_name);