diff --git a/port/threadx/inc/nx_port.h b/port/threadx/inc/nx_port.h
index 10875a0..2605d8d 100644
--- a/port/threadx/inc/nx_port.h
+++ b/port/threadx/inc/nx_port.h
@@ -47,7 +47,6 @@
 
 #ifndef NX_PORT_H
 #define NX_PORT_H
-#include "tx_port.h"
 /* Determine if the optional NetX user define file should be used.  */
 
 #ifdef NX_INCLUDE_USER_DEFINE_FILE