diff --git a/wifi/supplicant/1.2/types.hal b/wifi/supplicant/1.2/types.hal
index 576b4f5..eaf2546 100644
--- a/wifi/supplicant/1.2/types.hal
+++ b/wifi/supplicant/1.2/types.hal
@@ -60,4 +60,5 @@
     BUSY,
     TIMEOUT,
     FAILURE,
+    NOT_SUPPORTED,
 };