1 files changed, 1 insertions, 0 deletions
diff --git a/vm_core.h b/vm_core.h
index 378454de05..bba13168dc 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -825,6 +825,7 @@ VALUE rb_vm_invoke_proc(rb_thread_t *th, rb_proc_t *proc,
 VALUE rb_vm_make_proc(rb_thread_t *th, const rb_block_t *block, VALUE klass);
 VALUE rb_vm_make_env_object(rb_thread_t *th, rb_control_frame_t *cfp);
 VALUE rb_binding_new_with_cfp(rb_thread_t *th, const rb_control_frame_t *src_cfp);
+VALUE *rb_binding_add_dynavars(rb_binding_t *bind, int dyncount, const ID *dynvars);
 void rb_vm_inc_const_missing_count(void);
 void rb_vm_gvl_destroy(rb_vm_t *vm);
 VALUE rb_vm_call(rb_thread_t *th, VALUE recv, VALUE id, int argc,