diff --git a/.gitlab-ci/test/gitlab-ci.yml b/.gitlab-ci/test/gitlab-ci.yml
index 4157d5939b7..a592de609a6 100644
--- a/.gitlab-ci/test/gitlab-ci.yml
+++ b/.gitlab-ci/test/gitlab-ci.yml
@@ -343,8 +343,7 @@ clang-format:
       [ -d "$CI_B2C_ARTIFACTS" ] || exit 1
       [ -d "$CI_COMMON_SCRIPTS" ] || exit 1
 
-
-      B2C_TEST_SCRIPT="bash -euc 'tar xf ${INSTALL_TARBALL_NAME}; ./install/common/init-stage2.sh'"
+      export B2C_TEST_SCRIPT="bash -euc 'tar xf ${INSTALL_TARBALL_NAME}; ./install/common/init-stage2.sh'"
 
       # The Valve CI gateway receives jobs in a YAML format. Create a
       # job description from the CI environment.