diff --git a/CMakeLists.txt b/CMakeLists.txt
index 292d9f4..e4b7002 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,6 +33,7 @@ message(STATUS "Found ASSIMP in ${ASSIMP_INCLUDE_DIR}")
 
 if(WIN32)
   set(LIBS glfw3 opengl32 assimp freetype irrKlang)
+  add_definitions(-D_CRT_SECURE_NO_WARNINGS)
 elseif(UNIX AND NOT APPLE)
   set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wall")
   find_package(OpenGL REQUIRED)