diff --git a/connectivity/drivers/emac/TARGET_STM/stm32xx_emac.cpp b/connectivity/drivers/emac/TARGET_STM/stm32xx_emac.cpp
index daddbf1167b..a79ede9dbba 100644
--- a/connectivity/drivers/emac/TARGET_STM/stm32xx_emac.cpp
+++ b/connectivity/drivers/emac/TARGET_STM/stm32xx_emac.cpp
@@ -80,22 +80,22 @@ using namespace std::chrono;
 #if defined (__ICCARM__)   /*!< IAR Compiler */
 #pragma data_alignment=4
 #endif
-__ALIGN_BEGIN ETH_DMADescTypeDef DMARxDscrTab[ETH_RXBUFNB] __ALIGN_END; /* Ethernet Rx DMA Descriptor */
+ALIGN_32BYTES( ETH_DMADescTypeDef DMARxDscrTab[ETH_RXBUFNB] __attribute__((section(".emac_section"))));/* Ethernet Rx DMA Descriptor */
 
 #if defined (__ICCARM__)   /*!< IAR Compiler */
 #pragma data_alignment=4
 #endif
-__ALIGN_BEGIN ETH_DMADescTypeDef DMATxDscrTab[ETH_TXBUFNB] __ALIGN_END; /* Ethernet Tx DMA Descriptor */
+ALIGN_32BYTES( ETH_DMADescTypeDef DMATxDscrTab[ETH_TXBUFNB] __attribute__((section(".emac_section"))));/* Ethernet Tx DMA Descriptor */
 
 #if defined (__ICCARM__)   /*!< IAR Compiler */
 #pragma data_alignment=4
 #endif
-__ALIGN_BEGIN uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE] __ALIGN_END; /* Ethernet Receive Buffer */
+ALIGN_32BYTES( uint8_t Rx_Buff[ETH_RXBUFNB][ETH_RX_BUF_SIZE] __attribute__((section(".emac_section")))); /* Ethernet Receive Buffer */
 
 #if defined (__ICCARM__)   /*!< IAR Compiler */
 #pragma data_alignment=4
 #endif
-__ALIGN_BEGIN uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE] __ALIGN_END; /* Ethernet Transmit Buffer */
+ALIGN_32BYTES( uint8_t Tx_Buff[ETH_TXBUFNB][ETH_TX_BUF_SIZE] __attribute__((section(".emac_section")))); /* Ethernet Transmit Buffer */
 
 #else // ETH_IP_VERSION_V2