diff --git a/rpc-pool.go b/rpc-pool.go
index 76d978c..d290882 100644
--- a/rpc-pool.go
+++ b/rpc-pool.go
@@ -33,6 +33,9 @@ type RemoteGrain struct {
 }
 
 func NewRemoteGrain(id CartId, address string) *RemoteGrain {
+	if !strings.Contains(address, ":") {
+		address = fmt.Sprintf("[%s]:1337", address)
+	}
 	return &RemoteGrain{
 		Id:      id,
 		Address: address,