diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 60d8f5c09e71e5dcb3c9c74bcf0bdf3a1abe9c19..3bb8afe1fb02ecfa39fbe7dcfaa3b7ab956ecb61 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,6 +3,7 @@ slc6-gcc48:
     - docker
   image: clicdp/slc6-base
   script:
+    - ps -p $$
     - ls /cvmfs/sft.cern.ch/lcg/releases/LCG_84/ROOT/6.06.02/x86_64-slc6-gcc48-opt
     - ls -l /cvmfs/sft.cern.ch/lcg/releases/LCG_84/ROOT/6.06.02/x86_64-slc6-gcc48-opt/bin
     - . ./cvmfs/sft.cern.ch/lcg/releases/LCG_84/ROOT/6.06.02/x86_64-slc6-gcc48-opt/bin/thisroot.sh