1 files changed, 1 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index 88087a7dbc..f1a24e5f94 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -261,6 +261,7 @@ struct rb_iseq_struct {
     /****************/
 
     VALUE self;
+    VALUE orig;			/* non-NULL if its data have origin */
 
     /* block inlining */
     /*