diff --git a/formcycle-adapter/formcycle-adapter-interface/src/main/protobuf/form-data.model.proto b/formcycle-adapter/formcycle-adapter-interface/src/main/protobuf/form-data.model.proto
index 61ff4f7f5fa54c994e452a043e570bfb26b5931d..ccac014c15c44f208360b6c4dc8c0d23d4e77504 100644
--- a/formcycle-adapter/formcycle-adapter-interface/src/main/protobuf/form-data.model.proto
+++ b/formcycle-adapter/formcycle-adapter-interface/src/main/protobuf/form-data.model.proto
@@ -52,6 +52,7 @@ message FormCycleFormHeader {
 message FormCycleServiceKonto {
 	string type = 1;
 	FormCyclePostfachAddress address = 2;
+	string trustLevel = 3;
 }
 
 message FormCyclePostfachAddress {