diff --git a/CMakeLists.txt b/CMakeLists.txt
index f8dd4eb..f7394fb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,6 +15,12 @@ add_subdirectory(pybind11)
 
 include_directories(src/tools)
 
+if(MSVC)
+    add_compile_options(/openmp:llvm)
+else()
+    add_compile_options(-fopenmp)
+endif()
+
 file(GLOB SRC CONFIGURE_DEPENDS src/*.cpp src/*.h src/*.hpp)
 
 add_executable(${PROJECT_NAME}_bin ${SRC})