diff --git a/.travis.yml b/.travis.yml
index 4301ed0..dbb769f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: python
 python:
   - "2.7"
+before_script: "sudo apt-get install zsh"
 install: "pip install -r requirements.txt --use-mirrors"
-script: make
+script: make
\ No newline at end of file