diff --git a/apis/kubedb/v1/postgres_helpers.go b/apis/kubedb/v1/postgres_helpers.go
index 956de9e547..81857ce6b9 100644
--- a/apis/kubedb/v1/postgres_helpers.go
+++ b/apis/kubedb/v1/postgres_helpers.go
@@ -199,7 +199,9 @@ func (p *Postgres) SetDefaults(postgresVersion *catalog.PostgresVersion) {
 	if p == nil {
 		return
 	}
-
+	if p.Spec.StandbyMode == nil {
+		p.Spec.StandbyMode = ptr.To(HotPostgresStandbyMode)
+	}
 	if p.Spec.StorageType == "" {
 		p.Spec.StorageType = StorageTypeDurable
 	}
diff --git a/apis/kubedb/v1alpha2/postgres_helpers.go b/apis/kubedb/v1alpha2/postgres_helpers.go
index dc73b64655..25551b81c6 100644
--- a/apis/kubedb/v1alpha2/postgres_helpers.go
+++ b/apis/kubedb/v1alpha2/postgres_helpers.go
@@ -189,6 +189,9 @@ func (p *Postgres) SetDefaults(postgresVersion *catalog.PostgresVersion, topolog
 	if p == nil {
 		return
 	}
+	if p.Spec.StandbyMode == nil {
+		p.Spec.StandbyMode = ptr.To(HotPostgresStandbyMode)
+	}
 
 	if p.Spec.StorageType == "" {
 		p.Spec.StorageType = StorageTypeDurable