1 files changed, 3 insertions, 3 deletions
diff --git a/vm_core.h b/vm_core.h
index a6699ce1ad..a33a298b3e 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -605,13 +605,13 @@ int rb_thread_method_id_and_class(rb_thread_t *th, ID *idp, VALUE *klassp);
 
 VALUE vm_eval_body(rb_thread_t *th);
 VALUE vm_invoke_proc(rb_thread_t *th, rb_proc_t *proc, VALUE self,
-		     int argc, VALUE *argv, rb_block_t *blockptr);
+		     int argc, const VALUE *argv, rb_block_t *blockptr);
 VALUE vm_make_proc(rb_thread_t *th, rb_control_frame_t *cfp, rb_block_t *block);
 VALUE vm_make_env_object(rb_thread_t *th, rb_control_frame_t *cfp);
 VALUE vm_backtrace(rb_thread_t *, int);
 
-VALUE vm_yield(rb_thread_t *th, int argc, VALUE *argv);
-VALUE vm_yield_with_cref(rb_thread_t *th, int argc, VALUE *argv, NODE *cref);
+VALUE vm_yield(rb_thread_t *th, int argc, const VALUE *argv);
+VALUE vm_yield_with_cref(rb_thread_t *th, int argc, const VALUE *argv, NODE *cref);
 VALUE vm_call0(rb_thread_t *th, VALUE klass, VALUE recv, VALUE id, ID oid,
 	       int argc, const VALUE *argv, NODE *body, int nosuper);