diff --git a/Known-issues.md b/Known-issues.md
index c9486ae..ecd7482 100644
--- a/Known-issues.md
+++ b/Known-issues.md
@@ -302,7 +302,7 @@ As mentioned above, many clones of ACR112U fail to properly read FeliCa cards. W
 
 Instead of trying to find a good ACR112U unit, you may instead want to look into DIY solutions based on cardIO HID protocol: https://rhythm-cons.wiki/other-hardware/card-readers/
 
-### Card format supported by games
+#### Card format conversion for ACR122U readers
 
 There are two types of valid cards: