diff --git a/src/xpdev/xpdev_mt.props b/src/xpdev/xpdev_mt.props
index 5687460345caac7a33b1040605470d968da0ca40..4a8faeea56a5a55d6bb7c56a7d5309f92f3b0c2b 100644
--- a/src/xpdev/xpdev_mt.props
+++ b/src/xpdev/xpdev_mt.props
@@ -7,7 +7,7 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <ClCompile>
-      <PreprocessorDefinitions>HAS_STDINT_H;XPDEV_THREAD_SAFE;LINK_LIST_THREADSAFE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>HAS_INTTYPES_H;HAS_STDINT_H;XPDEV_THREAD_SAFE;LINK_LIST_THREADSAFE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(MSBuildThisFileDirectory);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>