diff --git a/bsp/hpmicro/libraries/drivers/drv_enet.c b/bsp/hpmicro/libraries/drivers/drv_enet.c
index 95df8cd8ddc..24d14c050b6 100644
--- a/bsp/hpmicro/libraries/drivers/drv_enet.c
+++ b/bsp/hpmicro/libraries/drivers/drv_enet.c
@@ -587,8 +587,10 @@ int rt_hw_eth_init(void)
         memset((uint8_t *)s_geths[i]->dma_rx_desc_tab, 0x00, sizeof(enet_rx_desc_t) * s_geths[i]->rx_buff_cfg->count);
         memset((uint8_t *)s_geths[i]->dma_tx_desc_tab, 0x00, sizeof(enet_tx_desc_t) * s_geths[i]->tx_buff_cfg->count);
 
-        memset((uint8_t *)s_geths[i]->rx_buff_cfg->buffer, 0x00, sizeof(s_geths[i]->rx_buff_cfg->size));
-        memset((uint8_t *)s_geths[i]->tx_buff_cfg->buffer, 0x00, sizeof(s_geths[i]->tx_buff_cfg->size));
+        memset((uint8_t *)s_geths[i]->rx_buff_cfg->buffer, 0x00,
+               s_geths[i]->rx_buff_cfg->count * s_geths[i]->rx_buff_cfg->size);
+        memset((uint8_t *)s_geths[i]->tx_buff_cfg->buffer, 0x00,
+               s_geths[i]->tx_buff_cfg->count * s_geths[i]->tx_buff_cfg->size);
 
         /* Set list heads */
         s_geths[i]->enet_dev->desc.tx_desc_list_head = (enet_tx_desc_t *)core_local_mem_to_sys_address(BOARD_RUNNING_CORE, (uint32_t)s_geths[i]->dma_tx_desc_tab);