diff --git a/hooks/onbuild b/hooks/onbuild
index 868e19370d85bb75ea7bf9eff73e1afe710e3c30..a343328a460814adc0f4cf60f6297db4320e9d3a 100644
--- a/hooks/onbuild
+++ b/hooks/onbuild
@@ -7,14 +7,20 @@
 # - Projekt-Configs anpassen
 #
 # 2014-05-07  axel.hahn@iml.unibe.ch
+# 2022-07-20  axel.hahn@iml.unibe.ch  remove unneeded dirs, e.g. docker 
 # ======================================================================
 
+dirs2remove="data docker"
+
 echo ONDEPLOY fuer CI Deployment GUI
 echo
-cd `dirname $0`
+cd $( dirname $0 )
 cd ..
 
-echo "----------> setze x-recht auf gitsshwrapper " 
+echo "----------> Set X permissions on gitsshwrapper " 
 ls -l shellscripts/gitsshwrapper.sh && chmod 755 shellscripts/gitsshwrapper.sh && ls -l shellscripts/gitsshwrapper.sh
 
+echo "----------> Reove unneeded dirs: $dirs2remove" 
+rm -rf ${dirs2remove}
+
 echo "----------> done."