diff --git a/Inc/stm32l5xx_hal_smbus.h b/Inc/stm32l5xx_hal_smbus.h
index 577a999..56a624a 100644
--- a/Inc/stm32l5xx_hal_smbus.h
+++ b/Inc/stm32l5xx_hal_smbus.h
@@ -751,8 +751,8 @@
   */
 
 /* Peripheral State and Errors functions  **************************************************/
-uint32_t HAL_SMBUS_GetState(SMBUS_HandleTypeDef *hsmbus);
-uint32_t HAL_SMBUS_GetError(SMBUS_HandleTypeDef *hsmbus);
+uint32_t HAL_SMBUS_GetState(const SMBUS_HandleTypeDef *hsmbus);
+uint32_t HAL_SMBUS_GetError(const SMBUS_HandleTypeDef *hsmbus);
 
 /**
   * @}
diff --git a/Src/stm32l5xx_hal_smbus.c b/Src/stm32l5xx_hal_smbus.c
index 0b32e1d..a267838 100644
--- a/Src/stm32l5xx_hal_smbus.c
+++ b/Src/stm32l5xx_hal_smbus.c
@@ -1831,7 +1831,7 @@
   *                the configuration information for the specified SMBUS.
   * @retval HAL state
   */
-uint32_t HAL_SMBUS_GetState(SMBUS_HandleTypeDef *hsmbus)
+uint32_t HAL_SMBUS_GetState(const SMBUS_HandleTypeDef *hsmbus)
 {
   /* Return SMBUS handle state */
   return hsmbus->State;
@@ -1843,7 +1843,7 @@
   *              the configuration information for the specified SMBUS.
   * @retval SMBUS Error Code
   */
-uint32_t HAL_SMBUS_GetError(SMBUS_HandleTypeDef *hsmbus)
+uint32_t HAL_SMBUS_GetError(const SMBUS_HandleTypeDef *hsmbus)
 {
   return hsmbus->ErrorCode;
 }