diff --git a/examples/device/cdc_msc_freertos/CMakeLists.txt b/examples/device/cdc_msc_freertos/CMakeLists.txt
index 11f1c6135..639dde99a 100644
--- a/examples/device/cdc_msc_freertos/CMakeLists.txt
+++ b/examples/device/cdc_msc_freertos/CMakeLists.txt
@@ -1,5 +1,10 @@
 cmake_minimum_required(VERSION 3.5)
 
+# TOP is absolute path to root directory of TinyUSB git repo
+# needed for esp32sx build. TOOD could be removed later on
+set(TOP "../../..")
+get_filename_component(TOP "${TOP}" REALPATH)
+
 include(${CMAKE_CURRENT_SOURCE_DIR}/../../../hw/bsp/family_support.cmake)
 
 # gets PROJECT name for the example (e.g. <BOARD>-<DIR_NAME>)