diff --git a/DirectXTex/DirectXTex_Windows10.vcxproj b/DirectXTex/DirectXTex_Windows10.vcxproj
index 925e51e..5a58a18 100644
--- a/DirectXTex/DirectXTex_Windows10.vcxproj
+++ b/DirectXTex/DirectXTex_Windows10.vcxproj
@@ -182,6 +182,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeaderFile>DirectXTexP.h</PrecompiledHeaderFile>
+      <PreprocessorDefinitions>_CRT_STDIO_ARBITRARY_WIDE_SPECIFIERS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -199,6 +200,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeaderFile>DirectXTexP.h</PrecompiledHeaderFile>
+      <PreprocessorDefinitions>_CRT_STDIO_ARBITRARY_WIDE_SPECIFIERS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -215,6 +217,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeaderFile>DirectXTexP.h</PrecompiledHeaderFile>
+      <PreprocessorDefinitions>_CRT_STDIO_ARBITRARY_WIDE_SPECIFIERS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -231,6 +234,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeaderFile>DirectXTexP.h</PrecompiledHeaderFile>
+      <PreprocessorDefinitions>_CRT_STDIO_ARBITRARY_WIDE_SPECIFIERS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -247,6 +251,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeaderFile>DirectXTexP.h</PrecompiledHeaderFile>
+      <PreprocessorDefinitions>_CRT_STDIO_ARBITRARY_WIDE_SPECIFIERS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
@@ -263,6 +268,7 @@
       <ProgramDataBaseFileName>$(IntDir)$(TargetName).pdb</ProgramDataBaseFileName>
       <WarningLevel>Level4</WarningLevel>
       <PrecompiledHeaderFile>DirectXTexP.h</PrecompiledHeaderFile>
+      <PreprocessorDefinitions>_CRT_STDIO_ARBITRARY_WIDE_SPECIFIERS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>