diff --git a/pySim/card_key_provider.py b/pySim/card_key_provider.py
index a6cd7eaa..06a6b2bf 100644
--- a/pySim/card_key_provider.py
+++ b/pySim/card_key_provider.py
@@ -58,7 +58,7 @@ class CardKeyFieldCryptor:
             'UICC_SCP02': ['UICC_SCP02_KIC1', 'UICC_SCP02_KID1', 'UICC_SCP02_KIK1'],
             'UICC_SCP03': ['UICC_SCP03_KIC1', 'UICC_SCP03_KID1', 'UICC_SCP03_KIK1'],
             'SCP03_ISDR': ['SCP03_ENC_ISDR', 'SCP03_MAC_ISDR', 'SCP03_DEK_ISDR'],
-            'SCP03_ISDA': ['SCP03_ENC_ISDR', 'SCP03_MAC_ISDA', 'SCP03_DEK_ISDA'],
+            'SCP03_ISDA': ['SCP03_ENC_ISDA', 'SCP03_MAC_ISDA', 'SCP03_DEK_ISDA'],
             'SCP03_ECASD': ['SCP03_ENC_ECASD', 'SCP03_MAC_ECASD', 'SCP03_DEK_ECASD'],
     }