diff --git a/spoilers.py b/spoilers.py
index 32c6f3d5..ba0c7887 100644
--- a/spoilers.py
+++ b/spoilers.py
@@ -477,8 +477,10 @@ def write_combined_xml(mtgjson, setinfos):
     cardsxml = open('out/spoiler.xml', 'w+')
     cardsxml.truncate()
     cardsxml.write("<?xml version='1.0' encoding='UTF-8'?>\n"
-                   "<cockatrice_carddatabase version='3'>\n"
-                   "<sets>\n")
+                   "<cockatrice_carddatabase version='3'>\n")
+    cardsxml.write("<!--\n    created (UTC): " + datetime.datetime.utcnow().strftime("%a %b %d %H:%M:%S %Z %Y")
+                   + "\n    by: Magic-Spoiler project @ https://github.com/Cockatrice/Magic-Spoiler\n    -->\n")
+    cardsxml.write("<sets>\n")
     for setcode in mtgjson:
         setobj = mtgjson[setcode]
         if 'cards' in setobj and len(setobj['cards']) > 0: