diff --git a/voltha-adapter-openonu/values.yaml b/voltha-adapter-openonu/values.yaml
index 6917202..c4789b6 100644
--- a/voltha-adapter-openonu/values.yaml
+++ b/voltha-adapter-openonu/values.yaml
@@ -25,6 +25,9 @@
   image_org: "voltha/"
   image_pullPolicy: "Always"
   incremental_evto_update: False
+  # timeout for deadline for interadapter communication
+  # should be in format as expected by parseDuration golang.
+  max_timeout_interadapter_comm: "30s"
   topics:
     core_topic: "rwcore"
     adapter_open_onu_topic: "brcm_openomci_onu"
@@ -59,6 +62,7 @@
 adapter_open_onu:
   log_level: '{{ .Values.defaults.log_level }}'
   incremental_evto_update: '{{ .Values.defaults.incremental_evto_update }}'
+  max_timeout_interadapter_comm: '{{ .Values.defaults.max_timeout_interadapter_comm }}'
 
 images:
   adapter_open_onu: