1 files changed, 1 insertions, 1 deletions
diff --git a/vm_core.h b/vm_core.h
index 1b5d8deea3..378454de05 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -377,7 +377,7 @@ typedef struct rb_vm_struct {
 
     int src_encoding_index;
 
-    VALUE verbose, debug, progname;
+    VALUE verbose, debug, orig_progname, progname;
     VALUE coverages;
 
     struct unlinked_method_entry_list_entry *unlinked_method_entry_list;