diff --git a/Source/Core/DolphinLib.vcxproj b/Source/Core/DolphinLib.vcxproj
index d8b762512e..01738f3299 100644
--- a/Source/Core/DolphinLib.vcxproj
+++ b/Source/Core/DolphinLib.vcxproj
@@ -28,6 +28,11 @@
       <LanguageStandard>stdcpplatest</LanguageStandard>
     </ClCompile>
   </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <LanguageStandard>stdcpplatest</LanguageStandard>
+    </ClCompile>
+  </ItemDefinitionGroup>
   <ItemGroup>
     <ProjectReference Include="$(CoreDir)Common\SCMRevGen.vcxproj">
       <Project>{41279555-f94f-4ebc-99de-af863c10c5c4}</Project>
diff --git a/Source/Core/DolphinQt/DolphinQt.vcxproj b/Source/Core/DolphinQt/DolphinQt.vcxproj
index 8d92201a75..9746ee15c3 100644
--- a/Source/Core/DolphinQt/DolphinQt.vcxproj
+++ b/Source/Core/DolphinQt/DolphinQt.vcxproj
@@ -39,6 +39,7 @@
       <PrecompiledHeaderFile>pch_qt.h</PrecompiledHeaderFile>
       <ForcedIncludeFiles>pch_qt.h</ForcedIncludeFiles>
       <LanguageStandard Condition="'$(Configuration)|$(Platform)'=='Release|x64'">stdcpp20</LanguageStandard>
+      <LanguageStandard Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdcpp20</LanguageStandard>
     </ClCompile>
     <Manifest>
       <AdditionalManifestFiles>DolphinQt.manifest;%(AdditionalManifestFiles)</AdditionalManifestFiles>
diff --git a/Source/UnitTests/UnitTests.vcxproj b/Source/UnitTests/UnitTests.vcxproj
index bf664aae6c..aef7582a70 100644
--- a/Source/UnitTests/UnitTests.vcxproj
+++ b/Source/UnitTests/UnitTests.vcxproj
@@ -20,7 +20,8 @@
     <!--This project also compiles gtest-->
     <ClCompile>
       <AdditionalIncludeDirectories>$(ExternalsDir)gtest\include;$(ExternalsDir)gtest;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <LanguageStandard Condition="'$(Configuration)|$(Platform)'=='Release|x64'">stdcpplatest</LanguageStandard>
+      <LanguageStandard Condition="'$(Configuration)|$(Platform)'=='Release|x64'">stdcpp20</LanguageStandard>
+      <LanguageStandard Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>