diff --git a/libs/backends/jack/jack_audiobackend.cc b/libs/backends/jack/jack_audiobackend.cc
index d7cca7ff9f..fc712a95f8 100644
--- a/libs/backends/jack/jack_audiobackend.cc
+++ b/libs/backends/jack/jack_audiobackend.cc
@@ -1150,6 +1150,7 @@ JACKAudioBackend::speed_and_position (double& speed, framepos_t& position)
 		// don't adjust speed here, just leave it as it was
 		break;
 	default:
+		starting = true; // jack2: JackTransportNetStarting
 		std::cerr << "WARNING: Unknown JACK transport state: " << state << std::endl;
 	}