diff --git a/components/bt/controller/esp32c2/bt.c b/components/bt/controller/esp32c2/bt.c
index 19513c66a4..a7c96cf348 100644
--- a/components/bt/controller/esp32c2/bt.c
+++ b/components/bt/controller/esp32c2/bt.c
@@ -321,7 +321,7 @@ void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
     if (*(data) == DATA_TYPE_ACL) {
         struct os_mbuf *om = os_msys_get_pkthdr(len, ACL_DATA_MBUF_LEADINGSPCAE);
         assert(om);
-        os_mbuf_append(om, &data[1], len - 1);
+        assert(os_mbuf_append(om, &data[1], len - 1) == 0);
         ble_hci_trans_hs_acl_tx(om);
     }
 
diff --git a/components/bt/controller/esp32h2/bt.c b/components/bt/controller/esp32h2/bt.c
index 92171203e2..b429b07e67 100644
--- a/components/bt/controller/esp32h2/bt.c
+++ b/components/bt/controller/esp32h2/bt.c
@@ -325,7 +325,7 @@ void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
     if (*(data) == DATA_TYPE_ACL) {
         struct os_mbuf *om = os_msys_get_pkthdr(len, ACL_DATA_MBUF_LEADINGSPCAE);
         assert(om);
-        os_mbuf_append(om, &data[1], len - 1);
+        assert(os_mbuf_append(om, &data[1], len - 1) == 0);
         ble_hci_trans_hs_acl_tx(om);
     }