diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f8a4c1438de21b1ee0a215b749b83100e6bf09df..863323ac4c1d4d2e476d0c2f9ee537611f561713 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,3 +14,5 @@ unit:
   - singularity run 'docker://bicf/bdbag:1.0' bdbag --materialize ./test_data/File_Q-Y53P.zip
   - singularity run 'docker://bicf/bdbag:1.0' bdbag --validate full ./test_data/File_Q-Y53P/
   - singularity run 'docker://bicf/bdbag:1.0' bdbag --validate completeness ./test_data/File_Q-Y53P/
+  - find ./test_data/File_Q-Y53P/ -type f -print0 | xargs -0 md5sum > test.md5
+  - md5sum -c test.md5