diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4c60546..7927d3c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -183,6 +183,8 @@ target_sources(infinisim PUBLIC
   ${InfiniTime_DIR}/src/touchhandler/TouchHandler.cpp
   ${InfiniTime_DIR}/src/systemtask/SystemTask.h
   ${InfiniTime_DIR}/src/systemtask/SystemTask.cpp
+  ${InfiniTime_DIR}/src/systemtask/SystemMonitor.h
+  ${InfiniTime_DIR}/src/systemtask/SystemMonitor.cpp
 )