diff --git a/pySim/filesystem.py b/pySim/filesystem.py
index 6010c302..24872c02 100644
--- a/pySim/filesystem.py
+++ b/pySim/filesystem.py
@@ -1065,6 +1065,11 @@ class RuntimeState(object):
         self.card = card
         self.selected_file = self.mf # type: CardDF
         self.profile = profile
+
+        # make sure the class and selection control bytes, which are specified
+        # by the card profile are used
+        self.card.set_apdu_parameter(cla=self.profile.cla, sel_ctrl=self.profile.sel_ctrl)
+
         # add application ADFs + MF-files from profile
         apps = self._match_applications()
         for a in apps:
@@ -1450,6 +1455,8 @@ class CardProfile(object):
             applications : List of CardApplications present on card
             sw : List of status word definitions
             shell_cmdsets : List of cmd2 shell command sets of profile-specific commands
+            cla : class byte that should be used with cards of this profile
+            sel_ctrl : selection control bytes class byte that should be used with cards of this profile
         """
         self.name = name
         self.desc = kw.get("desc", None)
@@ -1457,6 +1464,8 @@ class CardProfile(object):
         self.sw = kw.get("sw", [])
         self.applications = kw.get("applications", [])
         self.shell_cmdsets = kw.get("shell_cmdsets", [])
+        self.cla = kw.get("cla", "00")
+        self.sel_ctrl = kw.get("sel_ctrl", "0004")
 
     def __str__(self):
         return self.name
diff --git a/pySim/ts_102_221.py b/pySim/ts_102_221.py
index 3c99c4d9..61e236e2 100644
--- a/pySim/ts_102_221.py
+++ b/pySim/ts_102_221.py
@@ -683,7 +683,7 @@ class CardProfileUICC(CardProfile):
             },
           }
 
-        super().__init__('UICC', desc='ETSI TS 102 221', files_in_mf=files, sw=sw)
+        super().__init__('UICC', desc='ETSI TS 102 221', cla="00", sel_ctrl="0004", files_in_mf=files, sw=sw)
 
     def decode_select_response(self, data_hex:str) -> Any:
         return decode_select_response(data_hex)
diff --git a/pySim/ts_51_011.py b/pySim/ts_51_011.py
index a00cf0d1..c146a79e 100644
--- a/pySim/ts_51_011.py
+++ b/pySim/ts_51_011.py
@@ -976,7 +976,6 @@ def _decode_select_response(resp_hex):
 
 class CardProfileSIM(CardProfile):
     def __init__(self):
-        super().__init__('SIM', desc='GSM SIM Card', files_in_mf=[DF_TELECOM(), DF_GSM()])
-
+        super().__init__('SIM', desc='GSM SIM Card', cla="a0", sel_ctrl="0000", files_in_mf=[DF_TELECOM(), DF_GSM()])
     def decode_select_response(self, data_hex:str) -> Any:
 	    return _decode_select_response(data_hex)