diff --git a/include/vm.h b/include/vm.h
index 5992fcf..0f63f63 100644
--- a/include/vm.h
+++ b/include/vm.h
@@ -133,6 +133,7 @@ struct function_call {
 	uint32_t return_address;
 	int32_t page_slot;
 	int32_t struct_page;
+	int32_t delegate;
 };
 
 extern struct function_call call_stack[4096];
@@ -161,6 +162,7 @@ int vm_save_image(const char *key, const char *path);
 void vm_load_image(const char *key, const char *path);
 struct page *vm_load_image_comments(const char *key, const char *path, int *success);
 int vm_write_image_comments(const char *key, const char *path, struct page *comments);
+void vm_register_delegate_structs(struct page *dg, int dg_i);
 
 #endif /* VM_PRIVATE */
 #endif /* SYSTEM4_VM_H */