diff --git a/matrix_appservice_kakaotalk/commands/auth.py b/matrix_appservice_kakaotalk/commands/auth.py
index 36aab59..df122af 100644
--- a/matrix_appservice_kakaotalk/commands/auth.py
+++ b/matrix_appservice_kakaotalk/commands/auth.py
@@ -128,6 +128,7 @@ async def enter_dv_code(evt: CommandEvent) -> None:
     assert(evt.sender.command_status)
     req: dict = evt.sender.command_status["req"]
     passcode = evt.content.body
+    await evt.mark_read()
     try:
         await KakaoTalkClient.register_device(passcode, **req)
         await _do_login(evt, req)
@@ -191,6 +192,7 @@ async def reset_device(evt: CommandEvent) -> None:
     if await evt.sender.is_logged_in():
         await evt.reply("This command requires you to be logged out.")
     else:
+        await evt.mark_read()
         await evt.sender.logout(reset_device=True)
         await evt.reply(
             "Your next login will use a different device ID.\n\n"
diff --git a/matrix_appservice_kakaotalk/commands/conn.py b/matrix_appservice_kakaotalk/commands/conn.py
index b390de0..12d1d39 100644
--- a/matrix_appservice_kakaotalk/commands/conn.py
+++ b/matrix_appservice_kakaotalk/commands/conn.py
@@ -71,6 +71,7 @@ async def ping(evt: CommandEvent) -> None:
     if not await evt.sender.is_logged_in():
         await evt.reply("You're not logged into KakaoTalk")
         return
+    await evt.mark_read()
     # try:
     own_info = await evt.sender.get_own_info()
     # TODO catch errors