diff --git a/Dockerfile.bird b/Dockerfile.bird
index 9e4a42a..884116e 100644
--- a/Dockerfile.bird
+++ b/Dockerfile.bird
@@ -4,6 +4,8 @@ MAINTAINER Pier Carlo Chiodi <pierky@pierky.com>
 
 EXPOSE 179
 
+ENV BIRD_VERSION 2.0.8
+
 RUN apt-get update && apt-get install -y \
         autoconf \
     git \
@@ -18,20 +20,14 @@ RUN apt-get update && apt-get install -y \
     libssh-dev
 
 WORKDIR /root
-RUN curl -O -L https://bird.network.cz/download/bird-2.0.7.tar.gz
-RUN tar -xvzf bird-2.0.7.tar.gz
+RUN curl -O -L https://bird.network.cz/download/bird-$BIRD_VERSION.tar.gz
+RUN tar -xvzf bird-$BIRD_VERSION.tar.gz
 
 # This directory must be mounted as a local volume with '-v `pwd`/bird:/etc/bird:rw' docker's command line option.
 # The host's file at `pwd`/bird/bird.conf is used as the configuration file for BIRD.
 RUN mkdir /etc/bird
 
-RUN cd bird-2.0.7 && \
-    autoreconf && \
-    ./configure && \
-    make && \
-    make install
-
-RUN cd bird-2.0.7 && \
+RUN cd bird-$BIRD_VERSION && \
     autoreconf && \
     ./configure --enable-ipv6 --enable-libssh && \
     make && \