diff --git a/CMakeLists.txt b/CMakeLists.txt
index 026b09e61986082ba7a49f83b0ffb5aec1f23277..110ca6fe6515705f33f5dd88f0bb339915917be1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,9 @@ ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "Windows")
   SET(TD_OS_DIR ${PROJECT_SOURCE_DIR}/src/os/windows)
   SET(TD_WINDOWS TRUE)
   ADD_DEFINITIONS(-DWINDOWS)
+  ADD_DEFINITIONS(-D__CLEANUP_C)
+  ADD_DEFINITIONS(-DPTW32_STATIC_LIB)
+  ADD_DEFINITIONS(-DPTW32_BUILD)
   
   SET(COMMON_FLAGS "/nologo /WX- /Oi /Oy- /Gm- /EHsc /MT /GS /Gy /fp:precise /Zc:wchar_t /Zc:forScope /Gd /errorReport:prompt /analyze-")
   SET(DEBUG_FLAGS "/Zi /W3 /GL")