diff --git a/.travis.yml b/.travis.yml
index 234a60686a..86c6db8d29 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ php:
 # optionally specify a list of environments, for example to test different RDBMS
 env:
   - DB=mysql
+  - APP_ENV=travis-ci
 
 # execute any number of scripts before the test run, custom env's are available as variables
 before_script: