diff --git a/UbuntuInstallation.md b/UbuntuInstallation.md
index 6f530dc..dd03b2e 100644
--- a/UbuntuInstallation.md
+++ b/UbuntuInstallation.md
@@ -16,15 +16,23 @@ If you are intending to install [Tilemill](http://mapbox.com/tilemill/) from a p
 Install Mapnik latest (3.x series)
 
 ```
+# you might have to update your outdated clang
+sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+sudo apt-get update -y
+sudo apt-get install -y gcc-6 g++-6 clang-3.8
+export CXX="clang++-3.8" && export CC="clang-3.8"
+
+# install mapnik
 git clone https://github.com/mapnik/mapnik mapnik-3.x --depth 10
 cd mapnik-3.x
 git submodule update --init
 sudo apt-get install python zlib1g-dev clang make pkg-config curl
 source bootstrap.sh
-./configure CUSTOM_CXXFLAGS="-D_GLIBCXX_USE_CXX11_ABI=0"
+./configure CUSTOM_CXXFLAGS="-D_GLIBCXX_USE_CXX11_ABI=0" CXX=${CXX} CC=${CC}
 make
 make test
 sudo make install
+
 ```
 
 ----