diff --git a/jenkins/cloudbees_build b/jenkins/cloudbees_build
index ea4924c..f3abe6f 100644
--- a/jenkins/cloudbees_build
+++ b/jenkins/cloudbees_build
@@ -6,8 +6,14 @@
 #
 # Author: Ralph Lange <Ralph.Lange@gmx.de>
 # Copyright (C) 2013 Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
+# Copyright (C) 2014 ITER Organization.
 # All rights reserved. Use is subject to license terms.
 
+###########################################
+# Determine EPICS Base version
+
+BASE=${1:-3.14.12.4}
+
 ###########################################
 # Fetch and unpack dependencies
 
@@ -17,9 +23,9 @@ rm -fr ${STUFF}
 mkdir -p ${STUFF}
 cd ${STUFF}
 
-wget -nv https://openepics.ci.cloudbees.com/job/Base-3.14.12.3_Build/lastSuccessfulBuild/artifact/baseR3.14.12.3.CB-dist.tar.gz
+wget -nv https://openepics.ci.cloudbees.com/job/Base-${BASE}_Build/lastSuccessfulBuild/artifact/base-${BASE}.CB-dist.tar.gz
 wget -nv https://openepics.ci.cloudbees.com/job/Doxygen-1.8.3_Build/lastSuccessfulBuild/artifact/doxygen-1.8.3.CB-dist.tar.gz
-tar -xzf baseR3.14.12.3.CB-dist.tar.gz
+tar -xzf base-${BASE}.CB-dist.tar.gz
 tar -xzf doxygen-1.8.3.CB-dist.tar.gz
 
 ###########################################