diff --git a/visualc/sharedspice.vcxproj b/visualc/sharedspice.vcxproj
index 1b91a474c..95d742f99 100644
--- a/visualc/sharedspice.vcxproj
+++ b/visualc/sharedspice.vcxproj
@@ -88,6 +88,7 @@
       <WarningLevel>Level4</WarningLevel>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
       <CompileAs>CompileAsC</CompileAs>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>psapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -130,6 +131,7 @@
       <WarningLevel>Level4</WarningLevel>
       <DebugInformationFormat />
       <CompileAs>CompileAsC</CompileAs>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>psapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
@@ -174,6 +176,7 @@
       <WarningLevel>Level4</WarningLevel>
       <DebugInformationFormat />
       <CompileAs>CompileAsC</CompileAs>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
     </ClCompile>
     <Link>
       <AdditionalDependencies>psapi.lib;%(AdditionalDependencies)</AdditionalDependencies>