diff --git a/tests/travis_test.sh b/tests/travis_test.sh
index 9dd2e3b5166faef8028edbe4086dc0f3dfb62830..9586492f685df4cb2aaa558dce4e4797346227a2 100644
--- a/tests/travis_test.sh
+++ b/tests/travis_test.sh
@@ -11,7 +11,7 @@ python setup.py install
 pip install -r stress_tests/requirements.txt
 pip install yapf nose2 mock coverage nose2[coverage_plugin]
 
-coverage run -m compile_definitions
+coverage run --append -m compile_definitions
 coverage run --append -m nose2 -vv
 COOLAMQP_FORCE_SELECT_LISTENER=1 coverage run --append -m nose2 -vv
 coverage run --append -m stress_tests