diff --git a/sound/pci/ctxfi/ctatc.c b/sound/pci/ctxfi/ctatc.c
index da2667cb2489..9e0532fb33ff 100644
--- a/sound/pci/ctxfi/ctatc.c
+++ b/sound/pci/ctxfi/ctatc.c
@@ -1429,10 +1429,10 @@ static int atc_get_resources(struct ct_atc *atc)
 	for (i = 0; i < NUM_DAIOTYP; i++) {
 		if (((i == MIC) && !cap.dedicated_mic) ||
 		    ((i == RCA) && !cap.dedicated_rca) ||
-		    i == SPDIFI1)
+		    i == SPDIFI_BAY)
 			continue;
 		if (atc->model == CTSB073X && i == SPDIFIO)
-			da_desc.type = SPDIFI1;
+			da_desc.type = SPDIFI_BAY;
 		else
 			da_desc.type = i;
 		da_desc.output = (i < LINEIM) || (i == RCA);
diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
index 4dbb1dd7af32..128cf2f69ac1 100644
--- a/sound/pci/ctxfi/ctdaio.c
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -35,7 +35,7 @@ static const struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
 	[LINEIM] = {.left = 0x1b5, .right = 0x1bd},
 	[SPDIFOO] = {.left = 0x20, .right = 0x21},
 	[SPDIFIO] = {.left = 0x15, .right = 0x1d},
-	[SPDIFI1] = {.left = 0x95, .right = 0x9d},
+	[SPDIFI_BAY] = {.left = 0x95, .right = 0x9d},
 };
 
 static const struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
@@ -106,7 +106,7 @@ static int daio_device_index(enum DAIOTYP type, struct hw *hw)
 		switch (type) {
 		case SPDIFOO:	return 0;
 		case SPDIFIO:	return 0;
-		case SPDIFI1:	return 1;
+		case SPDIFI_BAY:	return 1;
 		case LINEO1:	return 4;
 		case LINEO2:	return 7;
 		case LINEO3:	return 5;
@@ -120,7 +120,7 @@ static int daio_device_index(enum DAIOTYP type, struct hw *hw)
 		switch (type) {
 		case SPDIFOO:	return 0;
 		case SPDIFIO:	return 0;
-		case SPDIFI1:	return 1;
+		case SPDIFI_BAY:	return 1;
 		case LINEO1:	return 4;
 		case LINEO2:	return 7;
 		case LINEO3:	return 5;
diff --git a/sound/pci/ctxfi/ctdaio.h b/sound/pci/ctxfi/ctdaio.h
index ff77d55539a5..c9f6207fe92f 100644
--- a/sound/pci/ctxfi/ctdaio.h
+++ b/sound/pci/ctxfi/ctdaio.h
@@ -32,7 +32,7 @@ enum DAIOTYP {
 	SPDIFIO,	/* S/PDIF In (Flexijack/Optical) on the card */
 	MIC,		/* Dedicated mic on Titanium HD */
 	RCA,		/* Dedicated RCA on SE-300PCIE */
-	SPDIFI1,	/* S/PDIF In on internal Drive Bay */
+	SPDIFI_BAY,	/* S/PDIF In on internal drive bay */
 	NUM_DAIOTYP
 };