1 files changed, 2 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index 8510e1688a..1af68a219f 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -400,6 +400,8 @@ typedef struct rb_vm_struct {
 
     struct unlinked_method_entry_list_entry *unlinked_method_entry_list;
 
+    VALUE defined_module_hash;
+
 #if defined(ENABLE_VM_OBJSPACE) && ENABLE_VM_OBJSPACE
     struct rb_objspace *objspace;
 #endif