diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d1f7b4806e..db18b835ec 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -321,7 +321,6 @@ stages:
 
 .unit_test_tsan: &unit_test_tsan_job
   <<: *unit_test_common
-  allow_failure: true
   after_script:
     - *kyua_report_html
     - find lib -name 'tsan.*' -exec python3 util/parse_tsan.py {} \;