diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fd50a211a4e4f837cb3a33e9b7d06112835316a7..b7d3e1d80b90a08e25d7c739595aa7c30e513f7b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ before_script:
   - module add  python/3.6.1-2-anaconda
   - pip install --user pytest-pythonpath==0.7.1 pytest-cov==2.5.1
   - module load nextflow/0.31.0
-  - ulimit -a unlimited
+  - ulimit -c unlimited
   - ln -s /project/shared/bicf_workflow_ref/workflow_testdata/chipseq/*fastq.gz test_data/
 
 stages: