diff --git a/CMakeLists.txt b/CMakeLists.txt
index acc1256..69d2b03 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,8 +3,11 @@ project(Yerbacon VERSION 0.0.1 LANGUAGES C CXX)
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_FLAGS "-Wall -pthread")
-set(CMAKE_CXX_FLAGS_RELEASE "-Os")
+set(CMAKE_CXX_FLAGS "-Wall")
+if (NOT MSVC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
+endif()
+set(CMAKE_CXX_FLAGS_RELEASE  "-Os")
 
 if((${CMAKE_CXX_COMPILER_ID} STREQUAL GNU) OR (${CMAKE_CXX_COMPILER_ID} STREQUAL Clang))
     set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc")