diff --git a/ground-station.py b/ground-station.py
index c352bff..8f92974 100644
--- a/ground-station.py
+++ b/ground-station.py
@@ -128,7 +128,7 @@ async def onMessage(message, client):
                 print("WARN: controll cmd (" + client['id'] + ") to None: " + data[2])
             else:
                 print("INFO: controll cmd (" + client['id'] + ") to " + client['boat']['name'] + ": " + data[2])
-                await client['boat']['ws'].send("d:" + data[2])
+                await client['boat']['ws'].send("d:" + data[2] + "\n")
         else:
             print("WARN: invalid command (" + client['id'] + "): '" + data[1] + "'")