diff --git a/libraries/AP_GPS/GPS_Backend.cpp b/libraries/AP_GPS/GPS_Backend.cpp
index 897b655388..2b2228fc3b 100644
--- a/libraries/AP_GPS/GPS_Backend.cpp
+++ b/libraries/AP_GPS/GPS_Backend.cpp
@@ -161,7 +161,7 @@ void AP_GPS_Backend::broadcast_gps_type() const
 {
     char buffer[MAVLINK_MSG_STATUSTEXT_FIELD_TEXT_LEN+1];
     _detection_message(buffer, sizeof(buffer));
-    gcs().send_text(MAV_SEVERITY_INFO, buffer);
+    gcs().send_text(MAV_SEVERITY_INFO, "%s", buffer);
 }
 
 void AP_GPS_Backend::Write_AP_Logger_Log_Startup_messages() const