diff --git a/.travis.yml b/.travis.yml
index 0655081..e3b6306 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,10 @@ python:
   - 2.7
   - 3.4
 
+env:
+  global:
+    MACKEREL_APIKEY='xxxxxxxx'
+
 before_install: pip install -r requirements.txt
 
 script: python setup.py test