diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3f8fc9e..e7ad0eb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,10 +4,10 @@ project(${PROJECT_NAME})
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
-file(GLOB project_headers ./src/*.h)
-file(GLOB  project_cpps ./src/*.cpp)
-file(GLOB  project_cxx ./src/*.cxx)
-file(GLOB  project_cc ./src/*.cc)
+file(GLOB_RECURSE project_headers ./src/*.h)
+file(GLOB_RECURSE  project_cpps ./src/*.cpp)
+file(GLOB_RECURSE  project_cxx ./src/*.cxx)
+file(GLOB_RECURSE  project_cc ./src/*.cc)
 include_directories(./src/)
 
 find_package(Qt5 COMPONENTS Core Widgets Gui OpenGL REQUIRED)