diff --git a/Dockerfile b/Dockerfile
index d687b0e..80695e8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,8 @@
 # syntax=docker/dockerfile:1
 
 FROM python:3.10.1-slim-buster
+RUN apt-get update -y
+RUN apt-get install -y ffmpeg libopus0
 WORKDIR /app
 COPY requirements.txt requirements.txt
 RUN pip3 install -r requirements.txt
diff --git a/bot.py b/bot.py
index 0a38319..8cc1796 100644
--- a/bot.py
+++ b/bot.py
@@ -219,8 +219,10 @@ class HeidiClient(discord.Client):
             print("Error: Caller not in channel!")
             return
 
+        soundfile = message.content.split(" ")[-1]
+
         voice_client = await voice_channel.connect()
-        audio_source = discord.FFmpegPCMAudio("/sounds/" + message + ".mp3")  # only works from docker
+        audio_source = discord.FFmpegPCMAudio("/sounds/" + soundfile + ".mp3")  # only works from docker
         voice_client.play(audio_source)
 
         while voice_client.is_playing():
diff --git a/sounds/KeinFoto.mp3 b/voicelines/KeinFoto.mp3
similarity index 100%
rename from sounds/KeinFoto.mp3
rename to voicelines/KeinFoto.mp3
diff --git a/sounds/Opfer.mp3 b/voicelines/Opfer.mp3
similarity index 100%
rename from sounds/Opfer.mp3
rename to voicelines/Opfer.mp3