1 files changed, 1 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index ee49704317..dfc0e3c1ef 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -252,6 +252,7 @@ struct rb_iseq_struct {
 
     /* misc */
     ID defined_method_id;	/* for define_method */
+    rb_num_t flip_cnt;
 
     /* used at compile time */
     struct iseq_compile_data *compile_data;