1 files changed, 1 insertions, 1 deletions
diff --git a/vm_core.h b/vm_core.h
index a994a58a5d..a87e3c3859 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -1550,7 +1550,7 @@ void rb_vm_stack_to_heap(rb_execution_context_t *ec);
 void ruby_thread_init_stack(rb_thread_t *th);
 int rb_vm_control_frame_id_and_class(const rb_control_frame_t *cfp, ID *idp, ID *called_idp, VALUE *klassp);
 void rb_vm_rewind_cfp(rb_execution_context_t *ec, rb_control_frame_t *cfp);
-VALUE rb_vm_bh_to_procval(rb_execution_context_t *ec, VALUE block_handler);
+VALUE rb_vm_bh_to_procval(const rb_execution_context_t *ec, VALUE block_handler);
 
 void rb_vm_register_special_exception_str(enum ruby_special_exceptions sp, VALUE exception_class, VALUE mesg);