diff --git a/doc/station-diagnostic-api.txt b/doc/station-diagnostic-api.txt
index a974b813..f6e099b5 100644
--- a/doc/station-diagnostic-api.txt
+++ b/doc/station-diagnostic-api.txt
@@ -48,6 +48,8 @@ Methods		dict GetDiagnostics()
 					- CCMP-128
 					- TKIP
 					- GCMP-128
+					- GCMP-256
+					- CCMP-256
 
 			Possible errors: net.connman.iwd.Busy
 					 net.connman.iwd.Failed