diff --git a/rust/Dockerfile b/rust/Dockerfile
index 123ec2f..387a1bd 100644
--- a/rust/Dockerfile
+++ b/rust/Dockerfile
@@ -1,27 +1,9 @@
 FROM debian:wheezy
 MAINTAINER Johannes Schickling "schickling.j@gmail.com"
 
-ENV triple x86_64-unknown-linux-gnu
-
-# install curl (needed to install rust)
-RUN apt-get update && apt-get install -y curl gdb g++-multilib lib32stdc++6
-
-# install rust
-RUN curl -sL https://static.rust-lang.org/dist/rust-nightly-$triple.tar.gz | tar xvz -C /tmp
-RUN /tmp/rust-nightly-$triple/install.sh
-
-# install cargo
-RUN curl -sL https://static.rust-lang.org/cargo-dist/cargo-nightly-$triple.tar.gz | tar xvz -C /tmp
-RUN /tmp/cargo-nightly-$triple/install.sh
-
-# cleanup package manager
-RUN apt-get remove --purge -y curl && apt-get autoclean && apt-get clean
-RUN rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
-
-# prepare dir
-RUN mkdir /source
+ADD install.sh install.sh
+RUN ./install.sh && rm install.sh
 
 VOLUME ["/source"]
 WORKDIR /source
-
 CMD ["bash"]
diff --git a/rust/install.sh b/rust/install.sh
new file mode 100644
index 0000000..bf3c2a8
--- /dev/null
+++ b/rust/install.sh
@@ -0,0 +1,21 @@
+#! /bin/bash
+
+triple=x86_64-unknown-linux-gnu
+
+# install curl (needed to install rust)
+apt-get update && apt-get install -y curl gdb g++-multilib lib32stdc++6
+
+# install rust
+curl -sL https://static.rust-lang.org/dist/rust-nightly-$triple.tar.gz | tar xvz -C /tmp
+/tmp/rust-nightly-$triple/install.sh
+
+# install cargo
+curl -sL https://static.rust-lang.org/cargo-dist/cargo-nightly-$triple.tar.gz | tar xvz -C /tmp
+/tmp/cargo-nightly-$triple/install.sh
+
+# cleanup package manager
+apt-get remove --purge -y curl && apt-get autoclean && apt-get clean
+rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# prepare dir
+mkdir /source