diff --git a/.travis.yml b/.travis.yml
index 83e4bb5e..81c5c340 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -68,6 +68,7 @@ before_install: |
 
 install:
 - export PATH=$PWD/bin:$PATH
+- pip3 install pycparser  # py3.7 workaround for https://github.com/eliben/pycparser/issues/251
 - pip3 install .
 - pip3 install -r test_requirements.txt