diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp
index 4f4ee4f0b5..febb5e490a 100644
--- a/src/modules/mavlink/mavlink_main.cpp
+++ b/src/modules/mavlink/mavlink_main.cpp
@@ -884,7 +884,7 @@ Mavlink::send_message(const uint8_t msgid, const void *msg, uint8_t component_ID
 			int bret = sendto(_socket_fd, buf, packet_len, 0, (struct sockaddr *)&_bcast_addr, sizeof(_bcast_addr));
 
 			if (bret <= 0) {
-				PX4_WARN("sending broadcast failed");
+				PX4_WARN("sending broadcast failed, errno: %d: %s", errno, strerror(errno));
 			}
 		}