diff --git a/.travis.yml b/.travis.yml
index f0b714368d2d2217a591f6b77071808f4c48039c..0f5012b496640a8528f17e3d7e912907e23bb151 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,8 +8,8 @@ python:
 install:
   - sudo apt-get install python-pip
   - sudo /usr/bin/pip install git+git://github.com/pyinvoke/invoke.git
-  - 'if [ -n "${VAR+x}" ]; then invoke install-nacl --library=$NACL; fi'
-  - 'if [ -n "${VAR+x}" ]; then invoke install --dev; fi'
+  - 'if [ -n "${NACL+x}" ]; then invoke install-nacl --library=$NACL; fi'
+  - 'if [ -n "${NACL+x}" ]; then invoke install --dev; fi'
 script:
   - invoke tests --suite=$SUITE
 env: