diff --git a/mediachanger/Constants.hpp b/mediachanger/Constants.hpp
index 2e5434c7a8b7273c5acca141ba0ba74a572dba2e..3730631fffb1b47db5c8079aa748f5d14fd21609 100644
--- a/mediachanger/Constants.hpp
+++ b/mediachanger/Constants.hpp
@@ -107,12 +107,6 @@ enum MsgType {
 #define        ERMCUNLOAD      ERMCRBTERR+9    /* Remote SCSI media changer error (unload + demount) */
 #define ERMMAXERR       ERMBASEOFF+11
 
-/**
- * The default TCP/IP port on which the CASTOR ACS daemon listens for incoming Zmq
- * connections from the tape server.
- */
-const unsigned short ACS_PORT = 54521;
-
 /**
  * The default TCP/IP port on which the CASTOR rmcd daemon listens for incoming
  * TCP/IP connections from the tape server.