diff --git a/.travis.yml b/.travis.yml
index 7a8bc48..b8e4af6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,8 @@ before_install:
   - if [ "$CXX" = "clang++" ]; then sudo apt-get install -qq libstdc++-4.9-dev; fi
   - if [ "$CXX" = "g++" ]; then sudo apt-get install -qq g++-4.9; fi
   - if [ "$CXX" = "g++" ]; then export CXX="g++-4.9" CC="gcc-4.9"; fi
+  - apt-cache search clang
+  - apt-cache search gcc
 
 env:
   - BUILD_TYPE=Debug