diff --git a/.travis.yml b/.travis.yml
index 44f362f..f4ba32c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,8 @@ matrix:
   include:
     - env: ARCH=x86_64
     - env: ARCH=i386
+      before_install:
+        - sudo apt-get install -y g++-multilib libc6-dev:i386 libstdc++-5-dev:i386 zlib1g:i386
 
 install:
   - mkdir cmake-prefix