diff --git a/bbsim/Chart.yaml b/bbsim/Chart.yaml
index 389f00b..db09c2a 100644
--- a/bbsim/Chart.yaml
+++ b/bbsim/Chart.yaml
@@ -16,5 +16,5 @@
 description: Broadband Simulator
 icon: https://guide.opencord.org/logos/cord.svg
 apiVersion: v1
-version: 4.7.0
-appVersion: 1.11.0
+version: 4.8.0
+appVersion: 1.12.0
diff --git a/bbsim/templates/deployment.yaml b/bbsim/templates/deployment.yaml
index aaa57f2..7b5af1a 100644
--- a/bbsim/templates/deployment.yaml
+++ b/bbsim/templates/deployment.yaml
@@ -92,6 +92,9 @@
             "-rest_api_address", ":{{ .Values.bbsim_rest_port }}",
             "-ca", "{{ .Values.controlledActivation }}",
             "-omci_response_rate", "{{ .Values.omci_response_rate }}",
+            {{ if .Values.injectOmciUnknownAttributes }}
+            "-injectOmciUnknownAttributes",
+            {{ end -}}
             {{ if .Values.enableEvents -}}
             "-enableEvents",
             "-kafkaAddress", "{{ .Values.kafkaAddress }}",
diff --git a/bbsim/values.yaml b/bbsim/values.yaml
index 8d589ed..1cb6db4 100644
--- a/bbsim/values.yaml
+++ b/bbsim/values.yaml
@@ -30,6 +30,8 @@
 onu: 1
 uni: 4
 pots: 0
+injectOmciUnknownAttributes: false
+
 # time that BBSim should wait to emulate an hardware reboot
 oltRebootDelay: 60
 # delay between ONU discovery indication