diff --git a/.travis.yml b/.travis.yml
index 9db52849a..009ba2dda 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,5 +19,7 @@ matrix:
         apt:
           packages:
             - clang-3.8
+            - libc++-dev
+            - libc++abi-dev
             - nasm
           sources: *sources