diff --git a/YSFGateway/APRSWriter.cpp b/YSFGateway/APRSWriter.cpp
index 35cb6db..cb4fa1c 100644
--- a/YSFGateway/APRSWriter.cpp
+++ b/YSFGateway/APRSWriter.cpp
@@ -114,7 +114,7 @@ void CAPRSWriter::write(const unsigned char* source, const char* type, unsigned
 	}
 
 	char output[300U];
-	::sprintf(output, "%s>APDPRS,C4FM*,qAR,%s:!%s%c/%s%c%c %s via MMDVM",
+	::sprintf(output, "%s-Y>APDPRS,C4FM*,qAR,%s:!%s%c/%s%c%c %s via MMDVM",
 		callsign, m_callsign.c_str(),
 		lat, (fLatitude < 0.0F) ? 'S' : 'N',
 		lon, (fLongitude < 0.0F) ? 'W' : 'E',