diff --git a/CMakeLists.txt b/CMakeLists.txt
index 15db0de..f7a4de9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -16,6 +16,7 @@ set(SRC_FILES
         ${CMAKE_CURRENT_LIST_DIR}/src/gamecube.cpp
         ${CMAKE_CURRENT_LIST_DIR}/src/gamematrix.cpp
         includes/gamestate.h
+        src/seriell.cpp
 )
 #automatisch hinzufügen
 file(GLOB SRC_FILES "${CMAKE_CURRENT_LIST_DIR}/src/*.cpp")