diff --git a/desmume/src/windows/DeSmuME_2005.vcproj b/desmume/src/windows/DeSmuME_2005.vcproj
index 3cf7e3366..c08280f3c 100644
--- a/desmume/src/windows/DeSmuME_2005.vcproj
+++ b/desmume/src/windows/DeSmuME_2005.vcproj
@@ -55,7 +55,7 @@
 				FavorSizeOrSpeed="0"
 				EnableFiberSafeOptimizations="false"
 				WholeProgramOptimization="false"
-				AdditionalIncludeDirectories=".;..;lua\include;"glib-2.20.1\build";"glib-2.20.1\build\glib";.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\agg\include;.\agg\examples;.\wx\include"
+				AdditionalIncludeDirectories=".;..;lua\include;"glib-2.20.1\build";"glib-2.20.1\build\glib";.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\agg\include;.\agg\examples;.\wx\include;directx"
 				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;DEBUG;_CRT_SECURE_NO_DEPRECATE;GLIB_STATIC_COMPILATION;WIN32;HAVE_LIBZ;NOMINMAX;_WIN32_WINNT=0x0501;_CRTDBG_MAPALLOC "
 				ExceptionHandling="1"
 				BasicRuntimeChecks="0"
@@ -247,7 +247,7 @@
 				OmitFramePointers="true"
 				EnableFiberSafeOptimizations="true"
 				WholeProgramOptimization="true"
-				AdditionalIncludeDirectories=".;..;lua\include;"glib-2.20.1\build";"glib-2.20.1\build\glib";.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\agg\include;.\agg\examples;.\wx\include"
+				AdditionalIncludeDirectories=".;..;lua\include;"glib-2.20.1\build";"glib-2.20.1\build\glib";.\zlib123;.\zziplib;.\winpcap;userconfig;defaultconfig;.\agg\include;.\agg\examples;.\wx\include;directx"
 				PreprocessorDefinitions="_CRT_NONSTDC_NO_DEPRECATE;_CRT_SECURE_NO_DEPRECATE;GLIB_STATIC_COMPILATION;WIN32;HAVE_LIBZ;NOMINMAX;NDEBUG;RELEASE;_WIN32_WINNT=0x0501"
 				StringPooling="true"
 				ExceptionHandling="1"