diff --git a/internal/controller/standalone_pgadmin/statefulset_test.go b/internal/controller/standalone_pgadmin/statefulset_test.go
index 52c501b35..34a346e80 100644
--- a/internal/controller/standalone_pgadmin/statefulset_test.go
+++ b/internal/controller/standalone_pgadmin/statefulset_test.go
@@ -73,6 +73,8 @@ func TestReconcilePGAdminStatefulSet(t *testing.T) {
 		template.Spec.Volumes = nil
 
 		assert.Assert(t, cmp.MarshalMatches(template.ObjectMeta, `
+annotations:
+  kubectl.kubernetes.io/default-container: pgadmin
 creationTimestamp: null
 labels:
   postgres-operator.crunchydata.com/data: pgadmin
@@ -170,6 +172,7 @@ terminationGracePeriodSeconds: 30
 		assert.Assert(t, cmp.MarshalMatches(template.ObjectMeta, `
 annotations:
   annotation1: annotationvalue
+  kubectl.kubernetes.io/default-container: pgadmin
 creationTimestamp: null
 labels:
   label1: labelvalue