diff --git a/subsys/bluetooth/controller/ll_sw/lll.h b/subsys/bluetooth/controller/ll_sw/lll.h
index 6d36ac00ddc..d17710c8ec8 100644
--- a/subsys/bluetooth/controller/ll_sw/lll.h
+++ b/subsys/bluetooth/controller/ll_sw/lll.h
@@ -67,7 +67,7 @@ enum {
 	TICKER_ID_SCAN_LAST = ((TICKER_ID_SCAN_BASE) + (BT_CTLR_SCAN_SET) - 1),
 #if defined(CONFIG_BT_CTLR_ADV_EXT)
 	TICKER_ID_SCAN_AUX_BASE,
-	TICKER_ID_SCAN_AUX_LAST = ((TICKER_ID_SCAN_BASE) +
+	TICKER_ID_SCAN_AUX_LAST = ((TICKER_ID_SCAN_AUX_BASE) +
 				   (CONFIG_BT_CTLR_SCAN_AUX_SET) - 1),
 #endif /* CONFIG_BT_CTLR_ADV_EXT */
 #endif /* CONFIG_BT_OBSERVER */