diff --git a/subsys/bluetooth/controller/ll_sw/ull_adv.c b/subsys/bluetooth/controller/ll_sw/ull_adv.c
index d7d5b23f63e..b5595e5e9c2 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_adv.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_adv.c
@@ -690,7 +690,7 @@ uint8_t ll_adv_params_set(uint16_t interval, uint8_t adv_type,
 			lll_adv_data_reset(&adv->lll.scan_rsp);
 			err = lll_adv_aux_data_init(&adv->lll.scan_rsp);
 			if (err) {
-				return err;
+				return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
 			}
 
 			pdu = lll_adv_scan_rsp_peek(&adv->lll);
@@ -710,7 +710,7 @@ uint8_t ll_adv_params_set(uint16_t interval, uint8_t adv_type,
 			lll_adv_data_reset(&adv->lll.scan_rsp);
 			err = lll_adv_data_init(&adv->lll.scan_rsp);
 			if (err) {
-				return err;
+				return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
 			}
 
 			pdu = lll_adv_scan_rsp_peek(&adv->lll);
@@ -926,7 +926,7 @@ uint8_t ll_adv_enable(uint8_t enable)
 
 		err = lll_adv_data_init(&adv->lll.scan_rsp);
 		if (err) {
-			return err;
+			return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
 		}
 
 		pdu_scan = lll_adv_scan_rsp_peek(lll);
@@ -1873,7 +1873,7 @@ uint8_t ull_scan_rsp_set(struct ll_adv_set *adv, uint8_t len,
 
 		err = lll_adv_data_init(&adv->lll.scan_rsp);
 		if (err) {
-			return err;
+			return BT_HCI_ERR_MEM_CAPACITY_EXCEEDED;
 		}
 
 		prev = lll_adv_scan_rsp_peek(&adv->lll);