diff --git a/sys/windows/vs/sfctool/sfctool.vcxproj b/sys/windows/vs/sfctool/sfctool.vcxproj
index f86aa0b8b..e63a0c61d 100644
--- a/sys/windows/vs/sfctool/sfctool.vcxproj
+++ b/sys/windows/vs/sfctool/sfctool.vcxproj
@@ -124,6 +124,7 @@
       <AdditionalIncludeDirectories>$(WinWin32Dir);$(IncDir);$(SysWindDir);$(SysShareDir);$(WinShareDir);$(LuaDir);$(UtilDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;WIN32CON;NO_TILE_C;DLB;SAFEPROCS;SND_LIB_WINDSOUND;USER_SOUNDS;_LIB;HAS_STDINT_H;SFCTOOL;NOPANICTRACE;NOCRASHREPORT;NO_CHRONICLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <WarningLevel>Level3</WarningLevel>
+      <LanguageStandard_C>stdclatest</LanguageStandard_C>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
@@ -139,6 +140,7 @@
       <AdditionalIncludeDirectories>$(WinWin32Dir);$(IncDir);$(SysWindDir);$(SysShareDir);$(WinShareDir);$(LuaDir);$(UtilDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_NDEBUG;_CONSOLE;WIN32CON;NO_TILE_C;DLB;SAFEPROCS;SND_LIB_WINDSOUND;USER_SOUNDS;_LIB;HAS_STDINT_H;SFCTOOL;NOPANICTRACE;NOCRASHREPORT;NO_CHRONICLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <WarningLevel>Level3</WarningLevel>
+      <LanguageStandard_C>stdclatest</LanguageStandard_C>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
@@ -158,6 +160,7 @@
       <AdditionalIncludeDirectories>$(WinWin32Dir);$(IncDir);$(SysWindDir);$(SysShareDir);$(WinShareDir);$(LuaDir);$(UtilDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;WIN32CON;NO_TILE_C;DLB;SAFEPROCS;SND_LIB_WINDSOUND;USER_SOUNDS;_LIB;HAS_STDINT_H;SFCTOOL;NOPANICTRACE;NOCRASHREPORT;NO_CHRONICLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <WarningLevel>Level3</WarningLevel>
+      <LanguageStandard_C>stdclatest</LanguageStandard_C>
       <SDLCheck>true</SDLCheck>
       <ConformanceMode>true</ConformanceMode>
     </ClCompile>
@@ -173,6 +176,7 @@
       <AdditionalIncludeDirectories>$(WinWin32Dir);$(IncDir);$(SysWindDir);$(SysShareDir);$(WinShareDir);$(LuaDir);$(UtilDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_NDEBUG;_CONSOLE;WIN32CON;NO_TILE_C;DLB;SAFEPROCS;SND_LIB_WINDSOUND;USER_SOUNDS;_LIB;HAS_STDINT_H;SFCTOOL;NOPANICTRACE;NOCRASHREPORT;NO_CHRONICLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <WarningLevel>Level3</WarningLevel>
+      <LanguageStandard_C>stdclatest</LanguageStandard_C>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>