diff --git a/os/hal/include/i2c.h b/os/hal/include/i2c.h
index 066ee4a5f..8f8ae57f6 100644
--- a/os/hal/include/i2c.h
+++ b/os/hal/include/i2c.h
@@ -146,7 +146,6 @@ struct I2CSlaveConfig{
   i2cblock_t            *rxbuf;       /*!< Pointer to receive buffer. */
   i2cblock_t            *txbuf;       /*!< Pointer to transmit buffer.*/
 
-  EventSource           *sevent;     /*!< Status Change @p EventSource.*/
 };
 
 
diff --git a/os/hal/platforms/STM32/i2c_lld.h b/os/hal/platforms/STM32/i2c_lld.h
index 0ad317876..7083bf562 100644
--- a/os/hal/platforms/STM32/i2c_lld.h
+++ b/os/hal/platforms/STM32/i2c_lld.h
@@ -175,6 +175,8 @@ struct I2CDriver{
   uint8_t               slave_addr1;/*!< 7-bit address of the slave with r\w bit.*/
   uint8_t               slave_addr2;/*!< Used in 10-bit address mode. */
 
+  EventSource           sevent;     /*!< Status Change @p EventSource.*/
+
   /*********** End of the mandatory fields. **********************************/
 
   /**