diff --git a/tools/manager/main.py b/tools/manager/main.py
index ca4449f..ad21333 100644
--- a/tools/manager/main.py
+++ b/tools/manager/main.py
@@ -103,7 +103,7 @@ def main():
         "delete-project-files": lambda: os.system(f"sudo rm -rf /srv/{args.args[0]}"),
         "pull": lambda: update(),
         "_dump": lambda: dump_data(),
-        "backup": lambda: os.system(f"tar {args.args[0]} /srv /docker"),
+        "backup": lambda: os.system(f"tar cvf {args.args[0]} /srv /docker"),
 
         "dpf": lambda: handle_aliases(fnlist, "delete-project-files")()
     }