diff --git a/ConvertorManager/src/ConvertorManager.pro b/ConvertorManager/src/ConvertorManager.pro
index 14a6985..815aff9 100644
--- a/ConvertorManager/src/ConvertorManager.pro
+++ b/ConvertorManager/src/ConvertorManager.pro
@@ -18,6 +18,7 @@ TEMPLATE = lib
 DEFINES += QT_DEPRECATED_WARNINGS
 DEFINES += _WINDOWS
 DEFINES += CONVERTOR_LIB
+DEFINES += _TIMESPEC_DEFINED
 
 # You can also make your code fail to compile if you use deprecated APIs.
 # In order to do so, uncomment the following line.