diff --git a/generate/requiredParams.go b/generate/requiredParams.go
index dcdb5ad7..f6471dc9 100644
--- a/generate/requiredParams.go
+++ b/generate/requiredParams.go
@@ -66,4 +66,7 @@ var requiredParams = map[string][]string{
 	"registerTemplate": {
 		"displaytext",
 	},
+	"updateGuestOs": {
+		"osdisplayname",
+	},
 }