1 files changed, 2 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index 704989ce3f..0524616e38 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -160,8 +160,10 @@ typedef struct rb_call_info_struct {
 
     /* temporary values for method calling */
     int argc;
+    int opt_pc;
     struct rb_block_struct *blockptr;
     VALUE recv;
+
     VALUE (*call)(struct rb_thread_struct *th, struct rb_control_frame_struct *cfp, struct rb_call_info_struct *ci);
 } rb_call_info_t;