diff --git a/Octokit.Tests/Octokit.Tests.csproj b/Octokit.Tests/Octokit.Tests.csproj
index f08951e1..be33a3a3 100644
--- a/Octokit.Tests/Octokit.Tests.csproj
+++ b/Octokit.Tests/Octokit.Tests.csproj
@@ -38,7 +38,7 @@
   <ItemGroup>
     <Reference Include="NSubstitute, Version=1.8.0.0, Culture=neutral, PublicKeyToken=92dd2e9066daa5ca, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>../packages/NSubstitute.1.8.0.0/lib/net45/NSubstitute.dll</HintPath>
+      <HintPath>..\packages\NSubstitute.1.8.0.0\lib\net45\NSubstitute.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />