diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c
index e87d400df4f0ce434a1f2239eb9d654d71da5110..9b9ca004635cf0b73bc0da8b94e15c622e2293d2 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3120.c
@@ -6,10 +6,6 @@
 
 #include "addi-data/hwdrv_apci3120.c"
 
-#ifndef COMEDI_SUBD_TTLIO
-#define COMEDI_SUBD_TTLIO   11	/* Digital Input Output But TTL */
-#endif
-
 static const struct addi_board apci3120_boardtypes[] = {
 	{
 		.pc_DriverName		= "apci3120",