matz

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@988 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/object.c b/object.c
index 3574c6f23..cfc1f125c 100644
--- a/object.c
+++ b/object.c
@@ -113,6 +113,7 @@ rb_obj_dup(obj)
     }
     if (!SPECIAL_CONST_P(dup)) {
 	OBJSETUP(dup, rb_obj_type(obj), BUILTIN_TYPE(obj));
+	OBJ_INFECT(dup, obj);
     }
     return dup;
 }