diff --git a/.travis.yml b/.travis.yml
index 77cc9adfc..909cf534d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,6 +16,7 @@ addons:
       - libmpc3
       - libfox-1.6-dev
       - libgtest-dev
+      - lib32stdc++6
       - libclang-common-6.0-dev
       - clang-6.0
       - python3-pip