diff --git a/otouto/plugins/media.lua b/otouto/plugins/media.lua
index dac3d12..5244a0b 100644
--- a/otouto/plugins/media.lua
+++ b/otouto/plugins/media.lua
@@ -40,9 +40,9 @@ function media:action(msg, config, matches)
   if ext == 'gif' then
     result = utilities.send_document(receiver, file, nil, msg.message_id)
   elseif ext == 'ogg' then
-	result = utilities.send_voice(receiver, file, nil, msg.message_id)
+	result = utilities.send_voice(receiver, file, msg.message_id)
   elseif mime_type == 'audio' then
-    result = utilities.send_audio(receiver, file, nil, msg.message_id)
+    result = utilities.send_audio(receiver, file, msg.message_id)
   elseif mime_type == 'video' then
 	result = utilities.send_video(receiver, file, nil, msg.message_id)
   else
diff --git a/otouto/utilities.lua b/otouto/utilities.lua
index 2889b4f..b7effed 100644
--- a/otouto/utilities.lua
+++ b/otouto/utilities.lua
@@ -197,7 +197,7 @@ end
 
 -- NOTE: Voice messages are .ogg files encoded with OPUS
 -- https://core.telegram.org/bots/api#sendvoice
-function utilities.send_voice(chat_id, file, text, reply_to_message_id, duration)
+function utilities.send_voice(chat_id, file, reply_to_message_id, duration)
 	if not file then return false end
 	local output = bindings.request(
 		'sendVoice',