diff --git a/src/FSharp/FSharp.fsproj b/src/FSharp/FSharp.fsproj
index 44d03bf6..7791add3 100644
--- a/src/FSharp/FSharp.fsproj
+++ b/src/FSharp/FSharp.fsproj
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Name>FSharp</Name>
     <AssemblyName>MathNet.Numerics.FSharp</AssemblyName>
@@ -51,12 +52,21 @@
     <SignAssembly>true</SignAssembly>
   </PropertyGroup>
   <PropertyGroup>
-    <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
+    <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
   </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0' Or $(OS) != 'Windows_NT'">
-    <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
-  </PropertyGroup>
-  <Import Project="$(FSharpTargetsPath)" Condition="Exists('$(FSharpTargetsPath)')" />
+  <Choose>
+    <When Condition="'$(VisualStudioVersion)' == '11.0'">
+      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets')">
+        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
+      </PropertyGroup>
+    </When>
+    <Otherwise>
+      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets')">
+        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
+      </PropertyGroup>
+    </Otherwise>
+  </Choose>
+  <Import Project="$(FSharpTargetsPath)" />
   <ItemGroup>
     <Compile Include="AssemblyInfo.fs" />
     <Compile Include="Compatibility.fs" />
@@ -153,4 +163,4 @@
       </ItemGroup>
     </When>
   </Choose>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/FSharpUnitTests/FSharpUnitTests.fsproj b/src/FSharpUnitTests/FSharpUnitTests.fsproj
index 69c51a8a..2ff59d23 100644
--- a/src/FSharpUnitTests/FSharpUnitTests.fsproj
+++ b/src/FSharpUnitTests/FSharpUnitTests.fsproj
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Name>FSharpUnitTests</Name>
     <AssemblyName>MathNet.Numerics.FSharp.UnitTests</AssemblyName>
@@ -98,12 +99,21 @@
     <None Include="App.config" />
   </ItemGroup>
   <PropertyGroup>
-    <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0' Or $(OS) != 'Windows_NT'">
-    <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
+    <MinimumVisualStudioVersion Condition="'$(MinimumVisualStudioVersion)' == ''">11</MinimumVisualStudioVersion>
   </PropertyGroup>
-  <Import Project="$(FSharpTargetsPath)" Condition="Exists('$(FSharpTargetsPath)')" />
+  <Choose>
+    <When Condition="'$(VisualStudioVersion)' == '11.0'">
+      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets')">
+        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\..\Microsoft SDKs\F#\3.0\Framework\v4.0\Microsoft.FSharp.Targets</FSharpTargetsPath>
+      </PropertyGroup>
+    </When>
+    <Otherwise>
+      <PropertyGroup Condition="Exists('$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets')">
+        <FSharpTargetsPath>$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\FSharp\Microsoft.FSharp.Targets</FSharpTargetsPath>
+      </PropertyGroup>
+    </Otherwise>
+  </Choose>
+  <Import Project="$(FSharpTargetsPath)" />
   <Choose>
     <When Condition="$(TargetFrameworkIdentifier) == '.NETFramework' And ($(TargetFrameworkVersion) == 'v2.0' Or $(TargetFrameworkVersion) == 'v3.0' Or $(TargetFrameworkVersion) == 'v3.5')">
       <ItemGroup>
@@ -221,4 +231,4 @@
       </ItemGroup>
     </When>
   </Choose>
-</Project>
\ No newline at end of file
+</Project>