diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 09df6ee315..c62af8bd95 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,6 +8,7 @@ variables:
   CCACHE_DIR: "/ccache"
 
   GIT_DEPTH: 1
+  GIT_CLEAN_FLAGS: -ffdxq
 
   # The following values may be overwritten in GitLab's CI/CD Variables Settings.
   BUILD_PARALLEL_JOBS: 6