diff --git a/demos/modbus/ARM_CORTEXM_ST_Nucleo_F429ZI/bsp.c b/demos/modbus/ARM_CORTEXM_ST_Nucleo_F429ZI/bsp.c
index 3f4d9d9..8f8ec76 100644
--- a/demos/modbus/ARM_CORTEXM_ST_Nucleo_F429ZI/bsp.c
+++ b/demos/modbus/ARM_CORTEXM_ST_Nucleo_F429ZI/bsp.c
@@ -99,6 +99,9 @@ void BspInit(void)
   /* Disable the interrupts. */
   __disable_irq();
 
+  /* Initialize the HAL. */
+  HAL_Init();
+
   /* Configure the system clock. */
   SystemClock_Config();