diff --git a/client/dictionaries/iclass_default_keys.dic b/client/dictionaries/iclass_default_keys.dic
index 17ece4798..ee39c1e4c 100644
--- a/client/dictionaries/iclass_default_keys.dic
+++ b/client/dictionaries/iclass_default_keys.dic
@@ -12,4 +12,5 @@ F0E1D2C3B4A59687 # Kd from PicoPass 2k documentation
 31ad7ebd2f282168 # From HID multiclassSE reader
 6EFD46EFCBB3C875 # From pastebin: https://pastebin.com/uHqpjiuU
 E033CA419AEE43F9 # From pastebin: https://pastebin.com/uHqpjiuU
-2020666666668888 # iCopy-X
+2020666666668888 # iCopy-X iCL tags
+6666202066668888 # iCopy-X iCS tags reversed from the SOs