diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6b8f957..8142c23 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,7 +43,6 @@ function(setup_target TARGET)
           port/moonlight/trap_non_vectored.c
           port/moonlight/exception.c
           port/moonlight/vector_table.c
-          port/moonlight/tx_timer_interrupt.c
   )
   if("netxduo" IN_LIST ST_LIBRARIES)
     target_sources(${TARGET} PRIVATE port/moonlight/mnrs_network_driver.c)
diff --git a/port/threadx/CMakeLists.txt b/port/threadx/CMakeLists.txt
index ed5c4ae..637e49f 100644
--- a/port/threadx/CMakeLists.txt
+++ b/port/threadx/CMakeLists.txt
@@ -9,8 +9,7 @@ target_sources(${PROJECT_NAME}
     ${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_schedule.S
     ${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_stack_build.S
     ${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_system_return.S
-    #${CMAKE_CURRENT_LIST_DIR}/src/tx_timer_interrupt.c
-    #${CMAKE_CURRENT_LIST_DIR}/src/platform_rand.c
+    ${CMAKE_CURRENT_LIST_DIR}/src/tx_timer_interrupt.c
     # {{END_TARGET_SOURCES}}
 )
 
diff --git a/port/moonlight/tx_timer_interrupt.c b/port/threadx/src/tx_timer_interrupt.c
similarity index 100%
rename from port/moonlight/tx_timer_interrupt.c
rename to port/threadx/src/tx_timer_interrupt.c