diff --git a/.travis.yml b/.travis.yml
index c918a01b..aa816a4a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -47,7 +47,7 @@ before_install:
     -   pip install --use-mirrors matplotlib;
     - fi
 
-	- pip install --use-mirrors pillow
+    - pip install --use-mirrors pillow
     - pip install --use-mirrors cython
     - pip install --use-mirrors flake8
     - pip install --use-mirrors six