diff --git a/components/bt/controller/esp32c2/bt.c b/components/bt/controller/esp32c2/bt.c
index 5d241bce9d..e9c4f119fc 100644
--- a/components/bt/controller/esp32c2/bt.c
+++ b/components/bt/controller/esp32c2/bt.c
@@ -417,7 +417,7 @@ static int ble_hci_unregistered_hook(void*, void*)
 
 static int esp_intr_alloc_wrapper(int source, int flags, intr_handler_t handler, void *arg, void **ret_handle_in)
 {
-    int rc = esp_intr_alloc(source, flags | ESP_INTR_FLAG_IRAM, handler, arg, (intr_handle_t *)ret_handle_in);
+    int rc = esp_intr_alloc(source, ESP_INTR_FLAG_LEVEL3 | ESP_INTR_FLAG_IRAM, handler, arg, (intr_handle_t *)ret_handle_in);
     return rc;
 }