diff --git a/.travis.yml b/.travis.yml
index 0cd9f49..85eb9ca 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ env:
   - TMUX_VERSION="1.7"
   - TMUX_VERSION="1.8"
   - TMUX_VERSION="1.9a"
+  - TMUX_VERSION="2.0"
 before_install:
   - sudo apt-get update
   - sudo apt-get install -y bc build-essential libevent-dev libncurses5-dev