diff --git a/cmd/helm/load_plugins.go b/cmd/helm/load_plugins.go
index ef24e7883..f4c97bde7 100644
--- a/cmd/helm/load_plugins.go
+++ b/cmd/helm/load_plugins.go
@@ -131,7 +131,7 @@ func manuallyProcessArgs(args []string) ([]string, []string) {
 		switch a := args[i]; a {
 		case "--debug":
 			known = append(known, a)
-		case "--host", "--kube-context", "--home":
+		case "--host", "--kube-context", "--home", "--tiller-namespace":
 			known = append(known, a, args[i+1])
 			i++
 		default: