diff --git a/.gitlab-scripts/gitlab-ci.yml b/.gitlab-scripts/gitlab-ci.yml
index aeeba5de0c..9c69e9b444 100644
--- a/.gitlab-scripts/gitlab-ci.yml
+++ b/.gitlab-scripts/gitlab-ci.yml
@@ -94,7 +94,6 @@ check-dist:
     - packages
   image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/python:${PYTHON_VERSION}
   variables:
-    CFLAGS: -O0
     PIP_FIND_LINKS: file://${CI_PROJECT_DIR}/packages/
     PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
   cache: