diff --git a/magic_spoiler/__main__.py b/magic_spoiler/__main__.py
index 1fde176d..1fab4df0 100644
--- a/magic_spoiler/__main__.py
+++ b/magic_spoiler/__main__.py
@@ -191,10 +191,10 @@ def open_header(card_xml_file: IO[Any]) -> None:
     """
     card_xml_file.write(
         "<cockatrice_carddatabase version='3'>\n"
-        + "<!--\nCreated At: "
-        + datetime.datetime.utcnow().strftime("%a, %b %d %Y, %H:%M:%S")
-        + " (UTC)"
-        + "\nCreated By: Magic-Spoiler project @ https://github.com/Cockatrice/Magic-Spoiler\n-->\n"
+        + "  <!--\n"
+        + "  Created At: " + datetime.datetime.utcnow().strftime("%a, %b %d %Y, %H:%M:%S") + " (UTC)\n"
+        + "  Created By: Magic-Spoiler project @ https://github.com/Cockatrice/Magic-Spoiler\n"
+        + "  -->\n"
         + "<sets>\n"
     )