diff --git a/drivers/wireless/ieee80211/bcm43xxx/bcmf_sdio.c b/drivers/wireless/ieee80211/bcm43xxx/bcmf_sdio.c
index e4a6023387e..ec11996c44e 100644
--- a/drivers/wireless/ieee80211/bcm43xxx/bcmf_sdio.c
+++ b/drivers/wireless/ieee80211/bcm43xxx/bcmf_sdio.c
@@ -1016,7 +1016,8 @@ struct bcmf_sdio_frame *bcmf_sdio_allocate_frame(FAR struct bcmf_dev_s *priv,
 
   sframe = container_of(entry, struct bcmf_sdio_frame, list_entry);
 
-  sframe->header.len  = HEADER_SIZE + MAX_NETDEV_PKTSIZE;
+  sframe->header.len  = HEADER_SIZE + MAX_NETDEV_PKTSIZE +
+                        CONFIG_NET_GUARDSIZE;
   sframe->header.base = sframe->data;
   sframe->header.data = sframe->data;
   sframe->tx          = tx;