1 files changed, 3 insertions, 0 deletions
diff --git a/yarvcore.h b/yarvcore.h
index ae439a5a60..c33163a570 100644
--- a/yarvcore.h
+++ b/yarvcore.h
@@ -277,6 +277,9 @@ struct rb_iseq_struct {
     int arg_block;
     int arg_opts;
     int arg_post_len;
+    int arg_post_start;
+    int arg_size;
+
     VALUE *arg_opt_tbl;
 
     /* for stack overflow check */