diff --git a/go/vt/topo/errors.go b/go/vt/topo/errors.go
index f66d3b6465d..a0bf8ad8dde 100644
--- a/go/vt/topo/errors.go
+++ b/go/vt/topo/errors.go
@@ -31,6 +31,7 @@ const (
 	BadVersion
 	PartialResult
 	NoUpdateNeeded
+	NoImplementation
 )
 
 // Error represents a topo error.
@@ -59,6 +60,8 @@ func NewError(code ErrorCode, node string) error {
 		message = fmt.Sprintf("partial result: %s", node)
 	case NoUpdateNeeded:
 		message = fmt.Sprintf("no update needed: %s", node)
+	case NoImplementation:
+		message = fmt.Sprintf("no such topology implementation %s", node)
 	default:
 		message = fmt.Sprintf("unknown code: %s", node)
 	}
diff --git a/go/vt/topo/server.go b/go/vt/topo/server.go
index 4f4702e3ce3..e32e3d1835a 100644
--- a/go/vt/topo/server.go
+++ b/go/vt/topo/server.go
@@ -199,7 +199,7 @@ func NewWithFactory(factory Factory, serverAddress, root string) (*Server, error
 func OpenServer(implementation, serverAddress, root string) (*Server, error) {
 	factory, ok := factories[implementation]
 	if !ok {
-		return nil, NewError(NoNode, implementation)
+		return nil, NewError(NoImplementation, implementation)
 	}
 	return NewWithFactory(factory, serverAddress, root)
 }