diff --git a/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/ref/Microsoft.Extensions.DependencyInjection.Abstractions.csproj b/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/ref/Microsoft.Extensions.DependencyInjection.Abstractions.csproj
index f85823f03e54c..75ea735a625ea 100644
--- a/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/ref/Microsoft.Extensions.DependencyInjection.Abstractions.csproj
+++ b/src/libraries/Microsoft.Extensions.DependencyInjection.Abstractions/ref/Microsoft.Extensions.DependencyInjection.Abstractions.csproj
@@ -11,6 +11,6 @@
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' or
                         $([MSBuild]::GetTargetFrameworkIdentifier('$(TargetFramework)')) == '.NETFramework'">
     <PackageReference Include="System.Threading.Tasks.Extensions" Version="$(SystemThreadingTasksExtensionsVersion)" />
-    <ProjectReference Include="$(LibrariesProjectRoot)Microsoft.Bcl.AsyncInterfaces\src\Microsoft.Bcl.AsyncInterfaces.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)Microsoft.Bcl.AsyncInterfaces\ref\Microsoft.Bcl.AsyncInterfaces.csproj" />
   </ItemGroup>
 </Project>
diff --git a/src/libraries/System.Diagnostics.EventLog/ref/System.Diagnostics.EventLog.csproj b/src/libraries/System.Diagnostics.EventLog/ref/System.Diagnostics.EventLog.csproj
index 2631550443e3a..ca4c77c50b5d5 100644
--- a/src/libraries/System.Diagnostics.EventLog/ref/System.Diagnostics.EventLog.csproj
+++ b/src/libraries/System.Diagnostics.EventLog/ref/System.Diagnostics.EventLog.csproj
@@ -10,7 +10,7 @@
     <ProjectReference Include="$(LibrariesProjectRoot)System.Security.Permissions\ref\System.Security.Permissions.csproj" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == '$(NetCoreAppCurrent)'">
-    <ProjectReference Include="$(LibrariesProjectRoot)System.Diagnostics.TraceSource\src\System.Diagnostics.TraceSource.csproj" />
+    <ProjectReference Include="$(LibrariesProjectRoot)System.Diagnostics.TraceSource\ref\System.Diagnostics.TraceSource.csproj" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
     <Reference Include="System.ComponentModel.Primitives" />
@@ -19,4 +19,4 @@
     <Reference Include="System.Runtime" />
     <Reference Include="System.Runtime.InteropServices" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>