diff --git a/Dockerfile b/Dockerfile
index a2bce4c..e06eaba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
 FROM ubuntu:trusty
 
-RUN apt-get update &&\
-    apt-get install -y git-core subversion build-essential gcc-multilib \
-                       libncurses5-dev zlib1g-dev gawk flex gettext wget vim unzip python libssl-dev &&\
-    apt-get clean &&\
-    useradd -m openwrt &&\
+RUN apt-get update && \
+    apt-get install -y git-core subversion build-essential gcc-multilib ccache \
+                       libncurses5-dev zlib1g-dev gawk flex gettext wget vim unzip python libssl-dev && \
+    apt-get clean && \
+    useradd -m openwrt && \
     echo 'openwrt ALL=NOPASSWD: ALL' > /etc/sudoers.d/openwrt
 RUN sudo -iu openwrt git clone git://git.openwrt.org/15.05/openwrt.git
 RUN sudo -iu openwrt openwrt/scripts/feeds update