diff --git a/solr/bin/update-configset.sh b/solr/bin/update-configset.sh
index 4291e518c..52861868b 100644
--- a/solr/bin/update-configset.sh
+++ b/solr/bin/update-configset.sh
@@ -5,4 +5,6 @@ if [[ -z $SOLR_HOME ]]; then
   exit
 fi
 
-$SOLR_HOME/bin/solr zk upconfig -n sapl_configset -d solr/sapl_configset/ -z localhost:9983
\ No newline at end of file
+ZK_HOST=${ZK_HOST-'localhost:9983'}
+
+$SOLR_HOME/bin/solr zk upconfig -n sapl_configset -d solr/sapl_configset/ -z $ZK_HOST