diff --git a/.travis.yml b/.travis.yml
index a4a9688..b8a1630 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,7 +12,7 @@ env:
 matrix:
   include:
     - python: 2.7
-      env: TOXENV=py27
+      env: TOXENV=py27 ESCPOS_CAPABILITIES_FILE=/home/travis/build/python-escpos/python-escpos/capabilities-data/dist/capabilities.json
     - python: 3.3
       env: TOXENV=py33
     - python: 3.4