diff --git a/.travis.yml b/.travis.yml
index 1ef8c0f43958b9ddb0e984c02e07af4102e3e16e..f573116f564ef37ec4ac4da126079077eadadf0d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,4 +23,6 @@ addons:
     - ubuntu-toolchain-r-test
     packages:
     - gcc-5
+    - libev-dev
+