diff --git a/src/include/device/azalia_device.h b/src/include/device/azalia_device.h
index 9010507aee..ca77350478 100644
--- a/src/include/device/azalia_device.h
+++ b/src/include/device/azalia_device.h
@@ -136,7 +136,7 @@ enum azalia_pin_location_2 {
 	(((codec) << 28) | ((pin) << 20) | (0x71f << 8)	\
 		| (((val) >> 24) & 0xff))
 
-#define AZALIA_PIN_CFG_NC(n)   (0x411111f0 | (n & 0xf))
+#define AZALIA_PIN_CFG_NC(n)   (0x411111f0 | ((n) & 0xf))
 
 #define AZALIA_RESET(pin)					\
 	(((pin) << 20) | 0x7ff00), (((pin) << 20) | 0x7ff00),	\