diff --git a/metropolis/cli/metroctl/core/rpc.go b/metropolis/cli/metroctl/core/rpc.go
index 4aeda75..e519906 100644
--- a/metropolis/cli/metroctl/core/rpc.go
+++ b/metropolis/cli/metroctl/core/rpc.go
@@ -48,7 +48,7 @@
 	}
 
 	if ocert == nil {
-		creds, err := rpc.NewEphemeralCredentials(opkey, nil)
+		creds, err := rpc.NewEphemeralCredentials(opkey, rpc.WantInsecure())
 		if err != nil {
 			return nil, fmt.Errorf("while building ephemeral credentials: %v", err)
 		}