diff --git a/src/backup/manifest.rs b/src/backup/manifest.rs
index 83e39e9c..b60582aa 100644
--- a/src/backup/manifest.rs
+++ b/src/backup/manifest.rs
@@ -186,7 +186,7 @@ impl BackupManifest {
     }
 
     /// Converts the Manifest into json string, and add a signature if there is a crypt_config.
-    pub fn into_string(self, crypt_config: Option<&CryptConfig>) -> Result<String, Error> {
+    pub fn to_string(&self, crypt_config: Option<&CryptConfig>) -> Result<String, Error> {
 
         let mut manifest = serde_json::to_value(&self)?;
 
@@ -262,7 +262,7 @@ fn test_manifest_signature() -> Result<(), Error> {
 
     manifest.unprotected["note"] = "This is not protected by the signature.".into();
 
-    let text = manifest.into_string(Some(&crypt_config))?;
+    let text = manifest.to_string(Some(&crypt_config))?;
 
     let manifest: Value = serde_json::from_str(&text)?;
     let signature = manifest["signature"].as_str().unwrap().to_string();
diff --git a/src/bin/proxmox-backup-client.rs b/src/bin/proxmox-backup-client.rs
index 7c6a05cb..0d1746dd 100644
--- a/src/bin/proxmox-backup-client.rs
+++ b/src/bin/proxmox-backup-client.rs
@@ -1082,7 +1082,7 @@ async fn create_backup(
 
     // create manifest (index.json)
     // manifests are never encrypted, but include a signature
-    let manifest = manifest.into_string(crypt_config.as_ref().map(Arc::as_ref))
+    let manifest = manifest.to_string(crypt_config.as_ref().map(Arc::as_ref))
         .map_err(|err| format_err!("unable to format manifest - {}", err))?;