diff --git a/build/repo.targets b/build/repo.targets
index ac7dea78a5..7421daef5c 100644
--- a/build/repo.targets
+++ b/build/repo.targets
@@ -2,7 +2,7 @@
   <Import Project="VSIX.targets" />
   <Import Project="MPack.targets" />
   <ItemGroup>
-    <Solutions Update="..\Razor.sln">
+    <Solutions Update="$(RepositoryRoot)Razor.sln">
       <!-- the 'DebugNoVSIX' and 'ReleaseNoVSIX' configurations exclude the VSIX project, which doesn't build with Microsoft.NET.Sdk yet. -->
       <AdditionalProperties>Configuration=$(Configuration)NoVSIX</AdditionalProperties>
     </Solutions>