diff --git a/readthedocs/rtd_tests/tests/test_builds.py b/readthedocs/rtd_tests/tests/test_builds.py
index 5da066bd611..d275b92995a 100644
--- a/readthedocs/rtd_tests/tests/test_builds.py
+++ b/readthedocs/rtd_tests/tests/test_builds.py
@@ -366,6 +366,7 @@ def test_get_env_vars(self):
         # mock this object to make sure that we are in a conda env
         task.config = mock.Mock(conda=True)
         env.update({
+            'NO_COLOR': '1',
             'CONDA_ENVS_PATH': os.path.join(project.doc_path, 'conda'),
             'CONDA_DEFAULT_ENV': version.slug,
             'BIN_PATH': os.path.join(