diff --git a/.travis.yml b/.travis.yml
index f8fbaa8a6..bb3337ffe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,7 @@ python:
 install:
   - "pip install --upgrade setuptools"
   - "pip install -r requirements.txt"
+  - "export PYTHONPATH=`pwd`"
   - "python setup.py build_ext --inplace"
   - "python -m spacy.en.download"
 # command to run tests