diff --git a/sources/CMakeLists.txt b/sources/CMakeLists.txt
index b6f0c57c..ac6a3c98 100644
--- a/sources/CMakeLists.txt
+++ b/sources/CMakeLists.txt
@@ -16,18 +16,17 @@ set(CC_TINYDIR_SOURCES
   ${CMAKE_CURRENT_LIST_DIR}/tinydir/tinydir.h
 )
 
-set(CC_FS_SOURCES
+set(CC_UTILS_SOURCES
   ${CMAKE_CURRENT_LIST_DIR}/ConvertUTF/ConvertUTF.c
   ${CMAKE_CURRENT_LIST_DIR}/ConvertUTF/ConvertUTF.h
   ${CMAKE_CURRENT_LIST_DIR}/ConvertUTF/ConvertUTFWrapper.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/xxtea/xxtea.cpp
+  ${CMAKE_CURRENT_LIST_DIR}/xxtea/xxtea.h
 )
 
 
 set(CC_EXTERNAL_SOURCES
 
-  ${CMAKE_CURRENT_LIST_DIR}/xxtea/xxtea.cpp
-  ${CMAKE_CURRENT_LIST_DIR}/xxtea/xxtea.h
-
   ${CMAKE_CURRENT_LIST_DIR}/tommyds/tommy.c
   ${CMAKE_CURRENT_LIST_DIR}/tommyds/tommy.h
 )