diff --git a/installers/charm/ro-k8s/config.yaml b/installers/charm/ro-k8s/config.yaml
index 31eaca8..e93cc49 100755
--- a/installers/charm/ro-k8s/config.yaml
+++ b/installers/charm/ro-k8s/config.yaml
@@ -40,3 +40,7 @@
     description: Docker repository password
     type: string
     default: ""
+  database_commonkey:
+    description: Database common key
+    type: string
+    default: osm
\ No newline at end of file
diff --git a/installers/charm/ro-k8s/reactive/ro.py b/installers/charm/ro-k8s/reactive/ro.py
index 094812f..aef1bea 100644
--- a/installers/charm/ro-k8s/reactive/ro.py
+++ b/installers/charm/ro-k8s/reactive/ro.py
@@ -207,6 +207,7 @@
         {
             "OSMRO_DATABASE_URI": mongodb_uri,
             "OSMRO_MESSAGE_HOST": kafka_host,
+            "OSMRO_DATABASE_COMMONKEY": cfg.get("database_commonkey"),
         }
     )
     return spec