diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3f10acf..628c0c6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.24)
 project(cppout)
 
-file(GLOB SOURCE_FILES "*.cpp")
+file(GLOB SOURCE_FILES "*/*.cpp")
 
 find_package(Curses REQUIRED)
 include_directories(${CURSES_INCLUDE_DIR})