diff --git a/pySim/cards.py b/pySim/cards.py
index 1662fc5..308d262 100644
--- a/pySim/cards.py
+++ b/pySim/cards.py
@@ -309,6 +309,10 @@
 			(res, sw) = self._scc.update_binary(EF_USIM_ADF_map['UST'], content)
 		return sw
 
+class IsimCard(Card):
+	def __init__(self, ssc):
+		super(IsimCard, self).__init__(ssc)
+
 
 class _MagicSimBase(Card):
 	"""