diff --git a/software/raspberry pi/tcpserver.py b/software/raspberry pi/tcpserver.py
index 34eaa34..dac0a8f 100644
--- a/software/raspberry pi/tcpserver.py	
+++ b/software/raspberry pi/tcpserver.py	
@@ -67,7 +67,7 @@ class TCPServer(Thread):
             pass
         else:
             while True:
-                self.cmd_queue.put('standby')
+                self.cmd_queue.put('standby:')
                 # Wait for a connection
                 # print('wait for a connection')
                 # self.status.emit(self.LISTEN, '')
@@ -95,5 +95,5 @@ class TCPServer(Thread):
 
         finally:
             self.tcp_socket.close()
-            self.cmd_queue.put('standby')
+            self.cmd_queue.put('standby:')
             print('exit')