1 files changed, 1 insertions, 1 deletions
diff --git a/include/mruby.h b/include/mruby.h
index c2f47a984..d82cff581 100644
--- a/include/mruby.h
+++ b/include/mruby.h
@@ -154,8 +154,8 @@ typedef void* (*mrb_allocf) (struct mrb_state *mrb, void*, size_t, void *ud);
 
 typedef struct {
   mrb_sym mid;
+  uint8_t cci;                  /* called from C function */
   int16_t argc;
-  int16_t acc;
   const struct RProc *proc;
   mrb_value *stack;
   const mrb_code *pc;           /* current address on iseq of this proc */