diff --git a/UnitTests/UnitTests.vcxproj b/UnitTests/UnitTests.vcxproj
index 0508fc0dc..4ca5a8cc7 100644
--- a/UnitTests/UnitTests.vcxproj
+++ b/UnitTests/UnitTests.vcxproj
@@ -86,6 +86,7 @@
       <UseFullPaths>true</UseFullPaths>
       <PrecompiledHeaderFile>pch.hpp</PrecompiledHeaderFile>
       <LanguageStandard>stdcpp17</LanguageStandard>
+      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
     <Link>
       <SubSystem>Windows</SubSystem>
@@ -112,7 +113,6 @@
   <ItemDefinitionGroup Condition="'$(Platform)'=='Win32'">
     <ClCompile>
       <PreprocessorDefinitions>WIN32;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />