diff --git a/.github/scripts/abcexe.vcxproj b/.github/scripts/abcexe.vcxproj
index 817e0809e..950021017 100644
--- a/.github/scripts/abcexe.vcxproj
+++ b/.github/scripts/abcexe.vcxproj
@@ -33,6 +33,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <DisableSpecificWarnings>4146;4334;4996;4703;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatSpecificWarningsAsErrors>4013</TreatSpecificWarningsAsErrors>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
diff --git a/.github/scripts/abclib.vcxproj.template b/.github/scripts/abclib.vcxproj.template
index 77498528d..9b21d325f 100644
--- a/.github/scripts/abclib.vcxproj.template
+++ b/.github/scripts/abclib.vcxproj.template
@@ -32,6 +32,7 @@
     <ClCompile>
       <WarningLevel>Level3</WarningLevel>
       <DisableSpecificWarnings>4146;4334;4996;4703;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <TreatSpecificWarningsAsErrors>4013</TreatSpecificWarningsAsErrors>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>