diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3480c94..1dad722 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -11,3 +11,5 @@ target_sources(
     PRIVATE
     ${CMAKE_CURRENT_SOURCE_DIR}/main.cpp
 )
+
+add_subdirectory(GUI)
diff --git a/src/GUI/CMakeLists.txt b/src/GUI/CMakeLists.txt
new file mode 100644
index 0000000..b4419fa
--- /dev/null
+++ b/src/GUI/CMakeLists.txt
@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.27)
+
+target_include_directories(
+    ${PROJECT_NAME}
+    PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+target_sources(
+    ${PROJECT_NAME}
+    PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}/WindowManager.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/DirectX11.cpp
+)