diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e37c40b503fa24ba47d8a4f1db3bbf64fe3747cb..0047755fcbc3ec26d86b3c24075354534c00ef13 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -166,6 +166,7 @@ Python 2.7 Apple:
 Python 3 Conda Apple:
   script:
   - CONDA_ENVIRONMENT=.test-conda-env-py3.yml
+  - export CC=gcc
   - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/build-and-test-py-project-within-miniconda.sh
   - ". ./build-and-test-py-project-within-miniconda.sh"
   tags: