diff --git a/.travis/ansible_tests.sh b/.travis/ansible_tests.sh
index 1736ab99..b9452827 100755
--- a/.travis/ansible_tests.sh
+++ b/.travis/ansible_tests.sh
@@ -47,6 +47,10 @@ echo \
     ansible_user=mitogen__has_sudo_nopw \
     ansible_password=has_sudo_nopw_password \
     >> ${TMPDIR}/hosts
+
+# Build the binaries.
+make -C ${TRAVIS_BUILD_DIR}/tests/ansible
+
 echo travis_fold:end:job_setup