diff --git a/.travis.yml b/.travis.yml
index 216c09b1..2d0d4ea7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ compiler:
 addons:
   apt:
     packages:
+     - g++-5
      - autotools-dev
      - automake
      - autoconf