diff --git a/string_fields.txt b/string_fields.txt
index b3e3502..d5a6f69 100644
--- a/string_fields.txt
+++ b/string_fields.txt
@@ -3,4 +3,7 @@ cabin_overheat_protection:
 climate_keeper_mode:
 	off
 hvac_auto_request:
-	Override
\ No newline at end of file
+	Override
+conn_charge_cable:
+	<invalid>
+	IEC
\ No newline at end of file