diff --git a/voltha-adapter-openonu/values.yaml b/voltha-adapter-openonu/values.yaml
index 6b264d5..e3baff1 100644
--- a/voltha-adapter-openonu/values.yaml
+++ b/voltha-adapter-openonu/values.yaml
@@ -33,6 +33,11 @@
     adapter_open_onu_topic: "brcm_openomci_onu"
     adapter_open_olt_topic: "openolt"
 
+  # Define prefix path for etcd
+  # If you're running multiple voltha stacks the this value
+  # should be unique across the stacks.
+  kv_store_data_prefix: "service/voltha"
+
 # Default security context under which the containers run
 securityContext:
   enabled: true