diff --git a/mtgcardlookup.py b/mtgcardlookup.py
index 16b9001..3ab25fd 100755
--- a/mtgcardlookup.py
+++ b/mtgcardlookup.py
@@ -193,11 +193,11 @@ async def get_cards(card_names):
 					c = scrython.cards.Named(fuzzy=replacement)
 					break
 			else:
-				c = scrython.cards.Named(fuzzy=name, set=set_code)
+				c = scrython.cards.Named(fuzzy=name, set=set_code.lower())
 
 				if collector_num:
 					c_by_num = scrython.cards.Collector(
-						code=set_code,
+						code=set_code.lower(),
 						collector_number=collector_num,
 					)
 					# Make sure the provided name matches