diff --git a/das-dn/submodbustcp/sub_modbus_tcp.cpp b/das-dn/submodbustcp/sub_modbus_tcp.cpp
index 2313993a..cf671502 100644
--- a/das-dn/submodbustcp/sub_modbus_tcp.cpp
+++ b/das-dn/submodbustcp/sub_modbus_tcp.cpp
@@ -434,7 +434,6 @@ int CSubModbusTcpProcess::OnPackageReceived(BYTE* pBuf, int count, int ord)
             break;
         default:
             break;
-        
     }
     if (ucRcvAddress != MB_ADDRESS_BROADCAST)
     {