diff --git a/README.md b/README.md
index 6712c06d..c851503c 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,7 @@ Optional dependencies for module support:
 
 ~~~ sh
 $ pacman -S cmake python2 boost xcb-util-image xcb-util-wm libxft wireless_tools alsa-lib libmpdclient
-$ apt-get install cmake cmake-data libboost-dev libfreetype6-dev libxcb1-dev libx11-xcb-dev libxcb-util0-dev libxcb-image0-dev libxcb-randr0-dev libxcb-ewmh-dev libxcb-icccm4-dev xcb-proto python-xcbgen i3-wm libiw-dev libasound2-dev libmpdclient-dev
+$ apt-get install cmake cmake-data libboost-dev libfreetype6-dev libxcb1-dev libx11-xcb-dev libxcb-util0-dev libxcb-image0-dev libxcb-randr0-dev libxcb-ewmh-dev libxcb-icccm4-dev libxcb-xkb-dev xcb-proto python-xcbgen i3-wm libiw-dev libasound2-dev libmpdclient-dev
 ~~~
 
 
diff --git a/common/travis/install_deps.sh b/common/travis/install_deps.sh
index ddf3d92f..d4e23a84 100755
--- a/common/travis/install_deps.sh
+++ b/common/travis/install_deps.sh
@@ -1,6 +1,23 @@
 #!/bin/sh
 sudo apt-add-repository -y "ppa:george-edison55/george-edison"
 sudo apt-get -qq update
-sudo apt-get install -y cmake cmake-data libboost-dev
-sudo apt-get install -y libxcb1-dev libxcb-util0-dev libxcb-image0-dev libxcb-randr0-dev libxcb-ewmh-dev libxcb-icccm4-dev xcb-proto python-xcbgen libfreetype6-dev
-sudo apt-get install -y i3-wm libiw-dev libasound2-dev libmpdclient-dev
+sudo apt-get install -y \
+  cmake cmake-data \
+  libboost-dev \
+  libxcb1-dev \
+  libxcb-ewmh-dev \
+  libxcb-icccm4-dev \
+  libxcb-image0-dev \
+  libxcb-randr0-dev \
+  libxcb-util0-dev \
+  libxcb-xkb-dev \
+  xcb-proto \
+  python-xcbgen \
+  libfreetype6-dev
+
+# optdepends
+sudo apt-get install -y \
+  i3-wm \
+  libiw-dev \
+  libasound2-dev \
+  libmpdclient-dev