diff --git a/samples/bluetooth/broadcast_audio_source/src/main.c b/samples/bluetooth/broadcast_audio_source/src/main.c
index dbaffb0c2ff..322cb7bbb94 100644
--- a/samples/bluetooth/broadcast_audio_source/src/main.c
+++ b/samples/bluetooth/broadcast_audio_source/src/main.c
@@ -77,8 +77,8 @@ static struct bt_bap_lc3_preset preset_active = BT_BAP_LC3_BROADCAST_PRESET_24_2
 #define USB_BYTES_PER_SAMPLE    2
 #define USB_CHANNELS		2
 
-#define RING_BUF_USB_FRAMES	20
-#define AUDIO_RING_BUF_BYTES    USB_NUM_SAMPLES * USB_BYTES_PER_SAMPLE * RING_BUF_USB_FRAMES
+#define RING_BUF_USB_FRAMES  20
+#define AUDIO_RING_BUF_BYTES (USB_NUM_SAMPLES * USB_BYTES_PER_SAMPLE * RING_BUF_USB_FRAMES)
 #else /* !defined(CONFIG_USB_DEVICE_AUDIO) */
 
 #include <math.h>