diff --git a/build/Repositories.props b/build/Repositories.props
index 280ed354b7..189da53c51 100644
--- a/build/Repositories.props
+++ b/build/Repositories.props
@@ -2,54 +2,53 @@
   <ItemDefinitionGroup>
     <Repository>
       <Branch>dev</Branch>
-      <CloneUrl>git@github.com:aspnet/%(Identity)</CloneUrl>
     </Repository>
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <Repository Include="Antiforgery" Commit="" />
-    <Repository Include="AzureIntegration" Commit="" />
-    <Repository Include="BasicMiddleware" Commit="" />
-    <Repository Include="BrowserLink" Commit="" />
-    <Repository Include="Caching" Commit="" />
-    <Repository Include="Common" Commit="" />
-    <Repository Include="Configuration" Commit="" />
-    <Repository Include="CORS" Commit="" />
-    <Repository Include="DataProtection" Commit="" />
-    <Repository Include="DependencyInjection" Commit="" />
-    <Repository Include="Diagnostics" Commit="" />
-    <Repository Include="DotNetTools" Commit="" />
-    <Repository Include="EntityFramework" Commit="" />
-    <Repository Include="EventNotification" Commit="" />
-    <Repository Include="FileSystem" Commit="" />
-    <Repository Include="Hosting" Commit="" />
-    <Repository Include="HtmlAbstractions" Commit="" />
-    <Repository Include="HttpAbstractions" Commit="" />
-    <Repository Include="HttpSysServer" Commit="" />
-    <Repository Include="Identity" Commit="" />
-    <Repository Include="IISIntegration" Commit="" />
-    <Repository Include="JavaScriptServices" Commit="" />
-    <Repository Include="JsonPatch" Commit="" />
-    <Repository Include="KestrelHttpServer" Commit="" />
-    <Repository Include="Localization" Commit="" />
-    <Repository Include="Logging" Commit="" />
-    <Repository Include="MetaPackages" Commit="" />
-    <Repository Include="Microsoft.Data.Sqlite" Commit="" />
-    <Repository Include="MusicStore" Commit="" />
-    <Repository Include="Mvc" Commit="" />
-    <Repository Include="MvcPrecompilation" Commit="" />
-    <Repository Include="Options" Commit="" />
-    <Repository Include="Proxy" Commit="" />
-    <Repository Include="Razor" Commit="" />
-    <Repository Include="ResponseCaching" Commit="" />
-    <Repository Include="Routing" Commit="" />
-    <Repository Include="Scaffolding" Commit="" />
-    <Repository Include="Security" Commit="" />
-    <Repository Include="ServerTests" Commit="" />
-    <Repository Include="Session" Commit="" />
-    <Repository Include="SignalR" Commit="" />
-    <Repository Include="StaticFiles" Commit="" />
-    <Repository Include="Testing" Commit="" />
-    <Repository Include="WebSockets" Commit="" />
+    <Repository Include="Antiforgery" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="AzureIntegration" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="BasicMiddleware" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="BrowserLink" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Caching" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Common" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Configuration" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="CORS" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="DataProtection" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="DependencyInjection" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Diagnostics" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="DotNetTools" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="EntityFramework" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="EventNotification" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="FileSystem" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Hosting" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="HtmlAbstractions" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="HttpAbstractions" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="HttpSysServer" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Identity" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="IISIntegration" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="JavaScriptServices" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="JsonPatch" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="KestrelHttpServer" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Localization" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Logging" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="MetaPackages" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Microsoft.Data.Sqlite" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="MusicStore" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Mvc" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="MvcPrecompilation" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Options" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Proxy" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Razor" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="ResponseCaching" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Routing" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Scaffolding" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Security" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="ServerTests" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Session" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="SignalR" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="StaticFiles" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="Testing" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
+    <Repository Include="WebSockets" Commit="" CloneUrl="git@github.com:aspnet/%(Identity)" />
   </ItemGroup>
 </Project>
diff --git a/build/repo.targets b/build/repo.targets
index c14f71af01..7aa7207cf2 100644
--- a/build/repo.targets
+++ b/build/repo.targets
@@ -199,27 +199,45 @@
       XmlInputPath="$(RepositoryFileWithCommit)"
       Query="//Repository[@Include='%(Repository.Identity)']/@Commit"
       Value="%(Repository.Commit)" />
+
+    <XmlPoke
+      XmlInputPath="$(RepositoryFileWithCommit)"
+      Query="//Repository[@Include='%(Repository.Identity)']/@CloneUrl"
+      Value="%(Repository.CloneUrl)" />
   </Target>
 
   <!-- Based on the solution here: http://stackoverflow.com/a/11331566 -->
   <Target Name="_GetRepositoryCommits" Outputs="%(Repository.Identity)">
     <PropertyGroup>
+      <!--
+        Attempt to read environment variables set up by the CI's VCS Root if available.
+        * vcsroot.<RepositoryName>.url gives us the clone URL for a repository
+        * build.vcs.number.<RepositoryName> gives us the commit hash for a repository.
+      -->
+      <_CloneUrl>$([System.Environment]::GetEnvironmentVariable("vcsroot.%(Repository.Identity).url"))</_CloneUrl>
+      <_CommitHash>$([System.Environment]::GetEnvironmentVariable("build.vcs.number.%(Repository.Identity)"))</_CommitHash>
+
       <RepositoryCloneDirectory>$(_CloneRepositoryRoot)%(Repository.Identity)</RepositoryCloneDirectory>
     </PropertyGroup>
 
     <Warning Text="%(Repository.Identity) has not been cloned."
       Condition="!Exists('$(RepositoryCloneDirectory)')" />
 
-    <GetGitCommitInfo WorkingDirectory="$(RepositoryCloneDirectory)" Condition="Exists('$(RepositoryCloneDirectory)')">
-      <Output TaskParameter="CommitHash" PropertyName="_Hash" />
+    <GetGitCommitInfo
+      WorkingDirectory="$(RepositoryCloneDirectory)"
+      Condition="'$(_CommitHash)'=='' AND Exists('$(RepositoryCloneDirectory)')">
+
+      <Output TaskParameter="CommitHash" PropertyName="_CommitHash" />
     </GetGitCommitInfo>
 
     <ItemGroup>
-      <Repository Update="%(Identity)" Commit="$(_Hash)" />
+      <Repository Update="%(Identity)" Commit="$(_CommitHash)" />
+      <Repository Update="%(Identity)" CloneUrl="$(_CloneUrl)" Condition="'$(_CloneUrl)'!=''" />
     </ItemGroup>
 
     <PropertyGroup>
-      <_Hash></_Hash>
+      <_CommitHash></_CommitHash>
+      <_CloneUrl></_CloneUrl>
     </PropertyGroup>
   </Target>