diff --git a/src/main.rs b/src/main.rs
index 26b0ae9..0b975e8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -22,15 +22,15 @@ Options:
           Proxmox Backup Server Fingerprint [env: PBS_FINGERPRINT=]
       --keyfile <KEYFILE>
           Key file
-      --master_keyfile <MASTER_KEYFILE>
+      --master-keyfile <MASTER_KEYFILE>
           Master key file
   -c, --compress
           Compress the Backup
   -e, --encrypt
           Encrypt the Backup
-      --password_file <PASSWORD_FILE>
+      --password-file <PASSWORD_FILE>
           Password file
-      --key_password_file <KEY_PASSWORD_FILE>
+      --key-password-file <KEY_PASSWORD_FILE>
           Key password file
   -h, --help
           Print help
@@ -80,7 +80,7 @@ fn parse_args() -> Result<BackupVmaToPbsArgs, Error> {
     let vmid = args.value_from_str("--vmid")?;
     let fingerprint = args.opt_value_from_str("--fingerprint")?;
     let keyfile = args.opt_value_from_str("--keyfile")?;
-    let master_keyfile = args.opt_value_from_str("--master_keyfile")?;
+    let master_keyfile = args.opt_value_from_str("--master-keyfile")?;
     let compress = args.contains(["-c", "--compress"]);
     let encrypt = args.contains(["-e", "--encrypt"]);
     let password_file: Option<OsString> = args.opt_value_from_str("--password-file")?;