diff --git a/pkg/cluster/k8sres_test.go b/pkg/cluster/k8sres_test.go
index e04b281ba..5772f69d1 100644
--- a/pkg/cluster/k8sres_test.go
+++ b/pkg/cluster/k8sres_test.go
@@ -958,6 +958,7 @@ func TestTLS(t *testing.T) {
 	var err error
 	var spec acidv1.PostgresSpec
 	var cluster *Cluster
+	var spiloFSGroup = int64(103)
 
 	makeSpec := func(tls acidv1.TLSDescription) acidv1.PostgresSpec {
 		return acidv1.PostgresSpec{
@@ -982,6 +983,9 @@ func TestTLS(t *testing.T) {
 					SuperUsername:       superUserName,
 					ReplicationUsername: replicationUserName,
 				},
+				Resources: config.Resources{
+					SpiloFSGroup: &spiloFSGroup,
+				},
 			},
 		}, k8sutil.KubernetesClient{}, acidv1.Postgresql{}, logger)
 	spec = makeSpec(acidv1.TLSDescription{SecretName: "my-secret", CAFile: "ca.crt"})