1 files changed, 1 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index 95808809c5..9ab23b2087 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -691,6 +691,7 @@ typedef struct rb_thread_struct {
     /* storage */
     st_table *local_storage;
     VALUE local_storage_recursive_hash;
+    VALUE local_storage_recursive_hash_for_trace;
 
     rb_thread_list_t *join_list;