diff --git a/src/object.c b/src/object.c
index 958161e320..e279d8b1d4 100644
--- a/src/object.c
+++ b/src/object.c
@@ -291,6 +291,9 @@ void rt_object_detach(rt_object_t object)
 
     RT_OBJECT_HOOK_CALL(rt_object_detach_hook, (object));
 
+    /* reset object type */
+    object->type = 0;
+
     /* lock interrupt */
     temp = rt_hw_interrupt_disable();
 
@@ -378,6 +381,9 @@ void rt_object_delete(rt_object_t object)
 
     RT_OBJECT_HOOK_CALL(rt_object_detach_hook, (object));
 
+    /* reset object type */
+    object->type = 0;
+
     /* lock interrupt */
     temp = rt_hw_interrupt_disable();