diff --git a/libs/ardour/ltc_slave.cc b/libs/ardour/ltc_slave.cc
index 4598c1295c..373e71bfec 100644
--- a/libs/ardour/ltc_slave.cc
+++ b/libs/ardour/ltc_slave.cc
@@ -69,7 +69,7 @@ LTC_TransportMaster::LTC_TransportMaster (std::string const & name)
 
 	DEBUG_TRACE (DEBUG::Slave, string_compose ("LTC registered %1\n", _port->name()));
 
-	memset(&prev_sample, 0, sizeof(LTCFrameExt));
+	memset (&prev_sample, 0, sizeof(LTCFrameExt));
 
 	resync_latency();