diff --git a/.travis.yml b/.travis.yml
index a3a7e33e..0f57d61d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -57,6 +57,7 @@ before_install: |
 
 install:
 - pip3 install pycparser # py3.7 workaround for https://github.com/eliben/pycparser/issues/251
+- pip3 install .
 - pip3 install -r test_requirements.txt
 
 script: