diff --git a/src/stkutil.h b/src/stkutil.h
index 4add2844..7e9ad86e 100644
--- a/src/stkutil.h
+++ b/src/stkutil.h
@@ -175,3 +175,12 @@ enum stk_data_object_type {
 	STK_DATA_OBJECT_TYPE_BROADCAST_NETWORK_INFO = 0x7A,
 	STK_DATA_OBJECT_TYPE_ACTIVATE_DESCRIPTOR = 0x7B,
 };
+
+enum stk_device_identity_type {
+	STK_DEVICE_IDENTITY_TYPE_KEYPAD = 0x01,
+	STK_DEVICE_IDENTITY_TYPE_DISPLAY = 0x02,
+	STK_DEVICE_IDENTITY_TYPE_EARPIECE = 0x03,
+	STK_DEVICE_IDENTITY_TYPE_UICC = 0x81,
+	STK_DEVICE_IDENTITY_TYPE_TERMINAL = 0x82,
+	STK_DEVICE_IDENTITY_TYPE_NETWORK = 0x83,
+};