diff --git a/libs/backends/jack/jack_connection.cc b/libs/backends/jack/jack_connection.cc
index 07af4b8ade..00b6feb5e1 100644
--- a/libs/backends/jack/jack_connection.cc
+++ b/libs/backends/jack/jack_connection.cc
@@ -153,7 +153,7 @@ void
 JackConnection::halted_callback ()
 {
 	_jack = 0;
-	cerr << "JACK HALTED\n";
+	std::cerr << "JACK HALTED\n";
 	Disconnected ("");
 }
 
@@ -161,7 +161,7 @@ void
 JackConnection::halted_info_callback (jack_status_t /*status*/, const char* reason)
 {
 	_jack = 0;
-	cerr << "JACK HALTED: " << reason << endl;
+	std::cerr << "JACK HALTED: " << reason << std::endl;
 	Disconnected (reason);
 }