diff --git a/.travis.yml b/.travis.yml
index 352e728..7d1b471 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,16 +9,16 @@ virtualenv:
   system_site_packages: true
 install:
   - sudo mkdir -p /etc/systemd/system # Until Travis is stuck with 14.04
-  - sudo pip install -r requirements.txt
-  - sudo pip install codecov pytest-cov requests-kerberos
-  - sudo pip install -e .
+  - sudo -E pip install -r requirements.txt
+  - sudo -E pip install codecov pytest-cov requests-kerberos
+  - sudo -E pip install -e .
 script:
   - sudo find /home/ -type d -exec chmod 755 {} \; # Allow certidude serve to read templates
   - sudo chmod 777 . # Allow forked processes to write .coverage files
-  - sudo coverage run --parallel-mode --source certidude -m py.test tests
-  - sudo coverage combine
-  - sudo coverage report
-  - sudo coverage xml -i
+  - sudo -E coverage run --parallel-mode --source certidude -m py.test tests
+  - sudo -E coverage combine
+  - sudo -E coverage report
+  - sudo -E coverage xml -i
 cache:
   directories:
     - $HOME/.cache/pip