diff --git a/kiri-engine/Di/Container.php b/kiri-engine/Di/Container.php
index 0b6f21c2..0c595701 100644
--- a/kiri-engine/Di/Container.php
+++ b/kiri-engine/Di/Container.php
@@ -116,7 +116,7 @@ class Container extends BaseObject implements ContainerInterface
 			$this->_interfaces[$interface] = $object;
 		} else {
 			$this->_interfaces[$interface] = get_class($object);
-			$this->_singletons[$interface] = $object;
+			$this->_singletons[get_class($object)] = $object;
 		}
 	}