diff --git a/src/object.c b/src/object.c
index cb177edbe6..fa14bcb7a2 100644
--- a/src/object.c
+++ b/src/object.c
@@ -366,7 +366,8 @@ void rt_object_init(struct rt_object         *object,
     /* set object type to static */
     object->type = type | RT_Object_Class_Static;
     /* copy name */
-    rt_strncpy(object->name, name, RT_NAME_MAX);
+    rt_strncpy(object->name, name, RT_NAME_MAX - 1);
+    object->name[RT_NAME_MAX - 1] = '\0';
 
     RT_OBJECT_HOOK_CALL(rt_object_attach_hook, (object));