diff --git a/nucleo-wb55-ble/Core/Src/app_entry.c b/nucleo-wb55-ble/Core/Src/app_entry.c
index f77eed4..87611f9 100644
--- a/nucleo-wb55-ble/Core/Src/app_entry.c
+++ b/nucleo-wb55-ble/Core/Src/app_entry.c
@@ -96,6 +96,15 @@ void APPE_Init( void )
    return;
 }
 /* USER CODE BEGIN FD */
+void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
+	switch (GPIO_Pin) {
+		case SW1_Pin:
+			UTIL_SEQ_SetTask(1<<CFG_TASK_SW1_BUTTON_PUSHED_ID, CFG_SCH_PRIO_0);
+			break;
+		default:
+			break;
+	}
+}
 
 /* USER CODE END FD */