diff --git a/hmp.h b/hmp.h
index 076d8cf..30b3c20 100644
--- a/hmp.h
+++ b/hmp.h
@@ -43,8 +43,8 @@
 void hmp_cpu(Monitor *mon, const QDict *qdict);
 void hmp_memsave(Monitor *mon, const QDict *qdict);
 void hmp_pmemsave(Monitor *mon, const QDict *qdict);
-void hmp_memchar_write(Monitor *mon, const QDict *qdict);
-void hmp_memchar_read(Monitor *mon, const QDict *qdict);
+void hmp_ringbuf_write(Monitor *mon, const QDict *qdict);
+void hmp_ringbuf_read(Monitor *mon, const QDict *qdict);
 void hmp_cont(Monitor *mon, const QDict *qdict);
 void hmp_system_wakeup(Monitor *mon, const QDict *qdict);
 void hmp_inject_nmi(Monitor *mon, const QDict *qdict);