diff --git a/.travis.yml b/.travis.yml
index adf0367..51e507a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,6 @@ addons:
     - george-edison55-precise-backports
     - ubuntu-toolchain-r-test
     - llvm-toolchain-precise-3.9
-      key_url: 'http://apt.llvm.org/llvm-snapshot.gpg.key'
     packages:
     - libboost-all-dev
     - cmake