diff --git a/src/serra/add.go b/src/serra/add.go
index bcca863..db1299f 100644
--- a/src/serra/add.go
+++ b/src/serra/add.go
@@ -95,7 +95,7 @@ func addCards(cards []string, unique bool, count int64) error {
 			continue
 		}
 
-		setName := strings.Split(card, "/")[0]
+		setName := strings.ToLower(strings.Split(card, "/")[0])
 		collectorNumber := strings.TrimLeft(strings.Split(card, "/")[1], "0")
 
 		if collectorNumber == "" {
diff --git a/src/serra/check.go b/src/serra/check.go
index a2ece66..5133dfe 100644
--- a/src/serra/check.go
+++ b/src/serra/check.go
@@ -36,7 +36,7 @@ func checkCards(cards []string, detail bool) error {
 
 		// Extract collector number and set name from card input & trim any leading 0 from collector number
 		collectorNumber := strings.TrimLeft(strings.Split(card, "/")[1], "0")
-		setName := strings.Split(card, "/")[0]
+		setName := strings.ToLower(strings.Split(card, "/")[0])
 
 		// Check if card is already in collection
 		co, err := coll.storageFind(bson.D{{"set", setName}, {"collectornumber", collectorNumber}}, bson.D{}, 0, 0)