diff --git a/compose.yaml b/compose.yaml
index 90b3beb..2bce4fa 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -46,7 +46,7 @@ services:
       ZIP_ENABLE: 'TRUE'
       ZIP_PASSWORD: 'Pwn1sh3r_@'
       ZIP_TYPE: 'zip'
-      BACKUP_FILE_SUFFIX: '%Y%m%d_%h'
+      BACKUP_FILE_SUFFIX: '%Y%m%d_%H'
       BACKUP_KEEP_DAYS: 14
       TIMEZONE: 'Europe/Berlin'
       MAIL_SMTP_ENABLE: 'FALSE'