diff --git a/helm/schedulerservice/values-local.yaml b/helm/schedulerservice/values-local.yaml
index 7e3106e..e177859 100644
--- a/helm/schedulerservice/values-local.yaml
+++ b/helm/schedulerservice/values-local.yaml
@@ -102,10 +102,11 @@ env:
     value: "DEBUG"
 
 # External Database configuration for local development
-# MySQL is deployed as a separate shared-mysql component
-# Service name uses release name: shared-mysql
+# Host must be set at deploy time - Backstage prefixes release names
+# Example: if MySQL release is "shared-mysql" in namespace "ns-123",
+# the service will be "ns-123-shared-mysql"
 externalDatabase:
-  host: "shared-mysql"
+  host: ""  # Set at deploy time via Backstage UI
   port: "3306"
   database: "os_scheduling_db"
   username: "scheduler_user"