diff --git a/CMakeLists.txt b/CMakeLists.txt
index d4e2c0df..ba7ace42 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.5)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
-set(EXTRA_COMPONENT_DIRS components/lvgl_esp32_drivers components/lvgl_esp32_drivers/lvgl_touch components/lvgl_esp32_drivers/lvgl_tft)
+list(APPEND EXTRA_COMPONENT_DIRS components/lvgl_esp32_drivers components/lvgl_esp32_drivers/lvgl_touch components/lvgl_esp32_drivers/lvgl_tft)
 
 if (NOT DEFINED PROJECT_NAME)
 	project(lvgl-demo)