Clear object_id for newly allocated class

1 files changed, 2 insertions, 0 deletions

diff --git a/class.c b/class.c
index 472095617c..b15f9f5ae7 100644
--- a/class.c
+++ b/class.c
@@ -682,6 +682,8 @@ class_alloc0(enum ruby_value_type type, VALUE klass, bool namespaceable)
 
     NEWOBJ_OF(obj, struct RClass, klass, flags, alloc_size, 0);
 
+    obj->object_id = 0;
+
     memset(RCLASS_EXT_PRIME(obj), 0, sizeof(rb_classext_t));
 
     /* ZALLOC