diff --git a/jjb/pipeline/voltha-scale-multi-stack.groovy b/jjb/pipeline/voltha-scale-multi-stack.groovy
index c8d1d04..d8d9be9 100644
--- a/jjb/pipeline/voltha-scale-multi-stack.groovy
+++ b/jjb/pipeline/voltha-scale-multi-stack.groovy
@@ -93,10 +93,14 @@
               kill -9 \$P_ID
             fi
 
-            for hchart in \$(helm list -q | grep -E -v 'docker-registry|kafkacat');
+            NAMESPACES="voltha1 voltha2 infra default"
+            for NS in \$NAMESPACES
             do
-                echo "Purging chart: \${hchart}"
-                helm delete "\${hchart}"
+                for hchart in \$(helm list -n \$NS -q | grep -E -v 'docker-registry|kafkacat');
+                do
+                    echo "Purging chart: \${hchart}"
+                    helm delete -n \$NS "\${hchart}"
+                done
             done
             bash /home/cord/voltha-scale/wait_for_pods.sh