diff --git a/main/main.c b/main/main.c
index 0a619ed..4e77489 100644
--- a/main/main.c
+++ b/main/main.c
@@ -11,7 +11,7 @@ esp_err_t event_handler(void *ctx, system_event_t *event)
     return ESP_OK;
 }
 
-int app_main(void)
+void app_main(void)
 {
     nvs_flash_init();
     system_init();