diff --git a/os/hal/include/hal_ioblock.h b/os/hal/include/hal_ioblock.h
index 74c41034f..c720a4a8c 100644
--- a/os/hal/include/hal_ioblock.h
+++ b/os/hal/include/hal_ioblock.h
@@ -61,6 +61,7 @@ typedef struct {
  * @brief   @p BaseBlockDevice specific methods.
  */
 #define _base_block_device_methods                                          \
+  _base_object_methods                                                      \
   /* Removable media detection.*/                                           \
   bool (*is_inserted)(void *instance);                                      \
   /* Removable write protection detection.*/                                \
@@ -84,6 +85,7 @@ typedef struct {
  * @brief   @p BaseBlockDevice specific data.
  */
 #define _base_block_device_data                                             \
+  _base_object_data                                                         \
   /* Driver state.*/                                                        \
   blkstate_t            state;
 
@@ -95,6 +97,8 @@ struct BaseBlockDeviceVMT {
 };
 
 /**
+ * @extends BaseObject
+ *
  * @brief   Base block device class.
  * @details This class represents a generic, block-accessible, device.
  */
diff --git a/os/hal/src/hal_mmc_spi.c b/os/hal/src/hal_mmc_spi.c
index 73c047086..1daea1fb6 100644
--- a/os/hal/src/hal_mmc_spi.c
+++ b/os/hal/src/hal_mmc_spi.c
@@ -53,6 +53,7 @@ static bool mmc_write(void *instance, uint32_t startblk,
  * @brief   Virtual methods table.
  */
 static const struct MMCDriverVMT mmc_vmt = {
+  (size_t)0,
   (bool (*)(void *))mmc_lld_is_card_inserted,
   (bool (*)(void *))mmc_lld_is_write_protected,
   (bool (*)(void *))mmcConnect,
diff --git a/os/hal/src/hal_sdc.c b/os/hal/src/hal_sdc.c
index 25add1417..ae64c95b5 100644
--- a/os/hal/src/hal_sdc.c
+++ b/os/hal/src/hal_sdc.c
@@ -72,6 +72,7 @@ typedef enum {
  * @brief   Virtual methods table.
  */
 static const struct SDCDriverVMT sdc_vmt = {
+  (size_t)0,
   (bool (*)(void *))sdc_lld_is_card_inserted,
   (bool (*)(void *))sdc_lld_is_write_protected,
   (bool (*)(void *))sdcConnect,