diff --git a/shoutcast/Dockerfile b/shoutcast/Dockerfile
index 784b1a6..4a62bc3 100644
--- a/shoutcast/Dockerfile
+++ b/shoutcast/Dockerfile
@@ -13,7 +13,7 @@ RUN set -xe \
     && apt-get install -y curl \
     && curl http://download.nullsoft.com/shoutcast/tools/sc_serv2_linux_x64-latest.tar.gz | tar xz \
     && mkdir -p control logs \
-    && apt-get remove -y curl \
+    && apt-get purge --auto-remove -y curl \
     && rm -rf /var/lib/apt/lists/*
 
 COPY sc_serv.conf .
diff --git a/shoutcast/README.md b/shoutcast/README.md
index bb9f558..87bfb35 100644
--- a/shoutcast/README.md
+++ b/shoutcast/README.md
@@ -138,6 +138,9 @@ audio_output {
 }
 ```
 
+> `MPD` doesn't support `streampath` setting.
+> The `mount` setting doesn't work.
+
 ```bash
 $ export MPD_HOST=192.168.31.104
 $ mpc update
diff --git a/shoutcast/arm/Dockerfile b/shoutcast/arm/Dockerfile
index 8d590f6..621bf2b 100644
--- a/shoutcast/arm/Dockerfile
+++ b/shoutcast/arm/Dockerfile
@@ -13,7 +13,7 @@ RUN set -xe \
     && apt-get install -y curl \
     && curl http://download.nullsoft.com/shoutcast/tools/sc_serv2_armv6_rpi-latest.tar.gz | tar xz \
     && mkdir -p control logs \
-    && apt-get remove -y curl \
+    && apt-get purge --auto-remove -y curl \
     && rm -rf /var/lib/apt/lists/*
 
 COPY sc_serv.conf .