diff --git a/ArduSub/ArduSub.cpp b/ArduSub/ArduSub.cpp
index 02751cf00f7..c6615b8715b 100644
--- a/ArduSub/ArduSub.cpp
+++ b/ArduSub/ArduSub.cpp
@@ -117,7 +117,7 @@ void Sub::perf_update(void)
         Log_Write_Performance();
     }
     if (scheduler.debug()) {
-        gcs_send_text_fmt(MAV_SEVERITY_WARNING, "PERF: %u/%u %lu %lu\n",
+        gcs_send_text_fmt(MAV_SEVERITY_WARNING, "PERF: %u/%u %lu %lu",
                           (unsigned)perf_info_get_num_long_running(),
                           (unsigned)perf_info_get_num_loops(),
                           (unsigned long)perf_info_get_max_time(),