diff --git a/drivers/isdn/hardware/eicon/divasync.h b/drivers/isdn/hardware/eicon/divasync.h
index 0a5be7f969f212e494912f8e1a6db7b0bdaec58e..af3eb9e795b500faba4eaa15eca11152b54c8872 100644
--- a/drivers/isdn/hardware/eicon/divasync.h
+++ b/drivers/isdn/hardware/eicon/divasync.h
@@ -256,7 +256,6 @@ typedef struct
 #define NO_ORDER_CHECK_MASK 0x00000010
 #define LOW_CHANNEL_MASK 0x00000020
 #define NO_HSCX30_MASK  0x00000040
-#define MODE_MASK   0x00000080
 #define SET_BOARD   0x00001000
 #define SET_CRC4   0x00030000
 #define SET_L1_TRISTATE  0x00040000