diff --git a/pySim-prog.py b/pySim-prog.py
index e00c2d01..2ac4dadf 100755
--- a/pySim-prog.py
+++ b/pySim-prog.py
@@ -73,6 +73,9 @@ def parse_options():
 	parser.add_option("-a", "--pin-adm", dest="pin_adm",
 			help="ADM PIN used for provisioning (overwrites default)",
 		)
+	parser.add_option("-A", "--pin-adm-hex", dest="pin_adm_hex",
+			help="ADM PIN used for provisioning, as hex string (16 characters long",
+		)
 	parser.add_option("-e", "--erase", dest="erase", action='store_true',
 			help="Erase beforehand [default: %default]",
 			default=False,
@@ -376,17 +379,27 @@ def gen_parameters(opts):
 	else:
 		opc = ''.join(['%02x' % random.randrange(0,256) for i in range(16)])
 
+
+	pin_adm = None
+
 	if opts.pin_adm is not None:
 		if len(opts.pin_adm) <= 8:
 			pin_adm = ''.join(['%02x'%(ord(x)) for x in opts.pin_adm])
 			pin_adm = rpad(pin_adm, 16)
-		elif len(opts.pin_adm) == 16:
-			pin_adm = opts.pin_adm
-		else:
-			raise ValueError("PIN-ADM needs to be <=8 digits (ascii) or exactly 16 digits (raw hex)")
-	else:
-		pin_adm = None
 
+		else:
+			raise ValueError("PIN-ADM needs to be <=8 digits (ascii)")
+
+        if opts.pin_adm_hex is not None:
+		if len(opts.pin_adm_hex) == 16:
+			pin_adm = opts.pin_adm_hex
+			# Ensure that it's hex-encoded
+			try:
+				try_encode = h2b(pin_adm)
+			except ValueError:
+			    raise ValueError("PIN-ADM needs to be hex encoded using this option")
+		else:
+			raise ValueError("PIN-ADM needs to be exactly 16 digits (hex encoded)")
 
 	# Return that
 	return {
diff --git a/pysim-testdata/Wavemobile-SIM.data b/pysim-testdata/Wavemobile-SIM.data
index 46690b47..0c3379a5 100644
--- a/pysim-testdata/Wavemobile-SIM.data
+++ b/pysim-testdata/Wavemobile-SIM.data
@@ -1,5 +1,5 @@
 MCC=001
 MNC=01
 IMSI=001010000000102
-ADM=15E31383624FDC8A
+ADM_HEX=15E31383624FDC8A
 
diff --git a/tests/Wavemobile-SIM.data.example b/tests/Wavemobile-SIM.data.example
index e9ba9653..bdf2d656 100644
--- a/tests/Wavemobile-SIM.data.example
+++ b/tests/Wavemobile-SIM.data.example
@@ -1,5 +1,5 @@
 MCC=001
 MNC=01
 IMSI=001010000000102
-ADM=0123456789ABCDEF
+ADM_HEX=0123456789ABCDEF
 
diff --git a/tests/pysim-test.sh b/tests/pysim-test.sh
index 5af7a938..f97722d6 100755
--- a/tests/pysim-test.sh
+++ b/tests/pysim-test.sh
@@ -156,9 +156,14 @@ function run_test {
 	OPC=FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
 	IMSI=001010000000001
 	ADM=00000000
+	ADM_OPT="-a"
 
-	. "$CARD_NAME.data"
-	python $PYSIM_PROG -p $I -t $CARD_NAME -o $OPC -k $KI -x $MCC -y $MNC -i $IMSI -s $ICCID -a $ADM
+	source "$CARD_NAME.data"
+	if [ -n "$ADM_HEX" ]; then
+		ADM_OPT="-A"
+		ADM=$ADM_HEX
+	fi
+	python $PYSIM_PROG -p $I -t $CARD_NAME -o $OPC -k $KI -x $MCC -y $MNC -i $IMSI -s $ICCID $ADM_OPT $ADM
 	check_card $I $CARD_NAME
 	echo ""
     done