@@ -698,6 +698,9 @@ func (srv *Server) ImageHistory(name string) ([]APIHistory, error) {

 func (srv *Server) ContainerTop(name, psArgs string) (*APITop, error) {

 	if container := srv.runtime.Get(name); container != nil {

+		if !container.State.IsRunning() {

+			return nil, fmt.Errorf("Container %s is not running", name)

+		}

 		pids, err := utils.GetPidsForContainer(container.ID)

 		if err != nil {

 			return nil, err