diff --git a/internal/cnpgi/common/common.go b/internal/cnpgi/common/common.go
index 8d99482..d09d2a2 100644
--- a/internal/cnpgi/common/common.go
+++ b/internal/cnpgi/common/common.go
@@ -2,9 +2,12 @@ package common
 
 import (
 	"fmt"
+	"path"
 	"strings"
 
 	barmanapi "github.com/cloudnative-pg/barman-cloud/pkg/api"
+
+	"github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/metadata"
 )
 
 // TODO: refactor.
@@ -70,3 +73,8 @@ func MergeEnv(env []string, incomingEnv []string) []string {
 
 	return result
 }
+
+// BuildCertificateFilePath builds the path to the barman objectStore certificate
+func BuildCertificateFilePath(objectStoreName string) string {
+	return path.Join(metadata.BarmanCertificatesPath, objectStoreName, metadata.BarmanCertificatesFileName)
+}
diff --git a/internal/cnpgi/common/wal.go b/internal/cnpgi/common/wal.go
index 9f7fc2e..586991d 100644
--- a/internal/cnpgi/common/wal.go
+++ b/internal/cnpgi/common/wal.go
@@ -83,7 +83,7 @@ func (w WALServiceImplementation) Archive(
 		objectStore.Namespace,
 		&objectStore.Spec.Configuration,
 		os.Environ(),
-		path.Join(metadata.BarmanCertificatesPath, objectStore.Name, metadata.BarmanCertificatesFileName),
+		BuildCertificateFilePath(objectStore.Name),
 	)
 	if err != nil {
 		if apierrors.IsForbidden(err) {
@@ -199,7 +199,7 @@ func (w WALServiceImplementation) restoreFromBarmanObjectStore(
 		objectStore.Namespace,
 		&objectStore.Spec.Configuration,
 		os.Environ(),
-		path.Join(metadata.BarmanCertificatesPath, objectStore.Name, metadata.BarmanCertificatesFileName),
+		BuildCertificateFilePath(objectStore.Name),
 	)
 	if err != nil {
 		return fmt.Errorf("while getting recover credentials: %w", err)
diff --git a/internal/cnpgi/instance/backup.go b/internal/cnpgi/instance/backup.go
index 144cb6f..687cae7 100644
--- a/internal/cnpgi/instance/backup.go
+++ b/internal/cnpgi/instance/backup.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"os"
-	"path"
 	"strconv"
 	"time"
 
@@ -105,7 +104,7 @@ func (b BackupServiceImplementation) Backup(
 		objectStore.Namespace,
 		&objectStore.Spec.Configuration,
 		common.MergeEnv(osEnvironment, caBundleEnvironment),
-		path.Join(metadata.BarmanCertificatesPath, objectStore.Name, metadata.BarmanCertificatesFileName),
+		common.BuildCertificateFilePath(objectStore.Name),
 	)
 	if err != nil {
 		contextLogger.Error(err, "while setting backup cloud credentials")
diff --git a/internal/cnpgi/restore/restore.go b/internal/cnpgi/restore/restore.go
index 063423c..1f0cb93 100644
--- a/internal/cnpgi/restore/restore.go
+++ b/internal/cnpgi/restore/restore.go
@@ -26,6 +26,7 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/client"
 
 	barmancloudv1 "github.com/cloudnative-pg/plugin-barman-cloud/api/v1"
+	"github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/common"
 	"github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/metadata"
 	"github.com/cloudnative-pg/plugin-barman-cloud/internal/cnpgi/operator/config"
 )
@@ -234,7 +235,7 @@ func (impl *JobHookImpl) checkBackupDestination(
 		cluster.Namespace,
 		barmanConfiguration,
 		os.Environ(),
-		path.Join(metadata.BarmanCertificatesPath, objectStoreName, metadata.BarmanCertificatesFileName),
+		common.BuildCertificateFilePath(objectStoreName),
 	)
 	if err != nil {
 		return fmt.Errorf("can't get credentials for cluster %v: %w", cluster.Name, err)
@@ -353,7 +354,7 @@ func loadBackupObjectFromExternalCluster(
 		cluster.Namespace,
 		recoveryObjectStore,
 		os.Environ(),
-		path.Join(metadata.BarmanCertificatesPath, recoveryObjectStoreName, metadata.BarmanCertificatesFileName))
+		common.BuildCertificateFilePath(recoveryObjectStoreName))
 	if err != nil {
 		return nil, nil, err
 	}