diff --git a/.travis.yml b/.travis.yml
index e4d07adb62edb54775e7ed85c32c52feb3429440..665b657a124a4ffd29c1ff51ed49b26ad18e4031 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ git:
   depth: 5
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get install -y x11-common libx11-6 x11-utils gsl-bin libxpm4 libxft2 libpng3 libjpeg-turbo8 libjpeg8 libtiff4 libxml2 libldap-2.4-2 libkrb5-3 freeglut3 libfftw3-3 python libmysqlclient18 libgif4 libiodbc2 libxext6 libxmu6 libimlib2 gccxml wget libpopt-dev
+  - sudo apt-get install -y x11-common libx11-6 x11-utils gsl-bin libxpm4 libxft2 libpng3 libjpeg-turbo8 libjpeg8 libtiff4 libxml2 libldap-2.4-2 libkrb5-3 freeglut3 libfftw3-3 python libmysqlclient18 libgif4 libiodbc2 libxext6 libxmu6 libimlib2 gccxml wget libpopt-dev libc6-dev-i386
   - sudo apt-get autoremove
 install:
   - wget http://root.cern.ch/download/root_v5.34.32.Linux-ubuntu12-x86_64-gcc4.6.tar.gz -O /tmp/root.tar.gz