diff --git a/src/libs/zmbv/zmbv.vcxproj b/src/libs/zmbv/zmbv.vcxproj
index c4fbf50a..579208eb 100644
--- a/src/libs/zmbv/zmbv.vcxproj
+++ b/src/libs/zmbv/zmbv.vcxproj
@@ -64,6 +64,7 @@
       <PrecompiledHeader />
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>winmm.lib;odbc32.lib;odbccp32.lib;zlibd.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -83,6 +84,7 @@
       <PrecompiledHeader />
       <WarningLevel>Level3</WarningLevel>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>winmm.lib;odbc32.lib;odbccp32.lib;zlib.lib;%(AdditionalDependencies)</AdditionalDependencies>
diff --git a/vs/dosbox.vcxproj b/vs/dosbox.vcxproj
index c79dd53d..e6ef5a63 100644
--- a/vs/dosbox.vcxproj
+++ b/vs/dosbox.vcxproj
@@ -67,6 +67,7 @@
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>opengl32.lib;SDL2_net.lib;winmm.lib;libpng16d.lib;SDL2maind.lib;SDL2d.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;opusfile.lib;opus.lib;ogg.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -113,6 +114,7 @@
       <DebugInformationFormat>None</DebugInformationFormat>
       <CompileAs>Default</CompileAs>
       <ConformanceMode>true</ConformanceMode>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>opengl32.lib;winmm.lib;libpng16.lib;SDL2_net.lib;SDL2.lib;SDL2main.lib;odbc32.lib;odbccp32.lib;ws2_32.lib;opusfile.lib;opus.lib;ogg.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -386,4 +388,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file