diff --git a/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/SdkDiffExclusions.txt b/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/SdkDiffExclusions.txt
index c69abc98a..fd8698ff4 100644
--- a/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/SdkDiffExclusions.txt
+++ b/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/SdkDiffExclusions.txt
@@ -89,3 +89,8 @@ msft,./sdk/x.y.z/FSharp/runtimes/win/lib/netx.y/System.Windows.Extensions.dll
 msft,./sdk/x.y.z/runtimes/win/lib/netx.y/Microsoft.Win32.SystemEvents.dll
 msft,./sdk/x.y.z/runtimes/win/lib/netx.y/System.Drawing.Common.dll
 msft,./sdk/x.y.z/runtimes/win/lib/netx.y/System.Windows.Extensions.dll
+
+# runtime components in roslyn layout - https://github.com/dotnet/source-build/issues/3286
+# Expected - build is filtering components present in target platform.
+msft,./sdk/x.y.z/Roslyn/bincore/System.Collections.Immutable.dll
+msft,./sdk/x.y.z/Roslyn/bincore/System.Reflection.Metadata.dll
diff --git a/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/baselines/MsftToSbSdk.diff b/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/baselines/MsftToSbSdk.diff
index 9f37e3c88..0408a8aeb 100644
--- a/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/baselines/MsftToSbSdk.diff
+++ b/src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/baselines/MsftToSbSdk.diff
@@ -448,15 +448,6 @@ index ------------
  ./sdk/x.y.z/Microsoft.VisualStudio.TestPlatform.Client.dll
  ./sdk/x.y.z/Microsoft.VisualStudio.TestPlatform.Common.dll
  ./sdk/x.y.z/Microsoft.VisualStudio.TestPlatform.ObjectModel.dll
-@@ ------------ @@
- ./sdk/x.y.z/Roslyn/bincore/ru/Microsoft.CodeAnalysis.CSharp.resources.dll
- ./sdk/x.y.z/Roslyn/bincore/ru/Microsoft.CodeAnalysis.resources.dll
- ./sdk/x.y.z/Roslyn/bincore/ru/Microsoft.CodeAnalysis.VisualBasic.resources.dll
--./sdk/x.y.z/Roslyn/bincore/System.Collections.Immutable.dll
--./sdk/x.y.z/Roslyn/bincore/System.Reflection.Metadata.dll
- ./sdk/x.y.z/Roslyn/bincore/tr/
- ./sdk/x.y.z/Roslyn/bincore/tr/Microsoft.CodeAnalysis.CSharp.resources.dll
- ./sdk/x.y.z/Roslyn/bincore/tr/Microsoft.CodeAnalysis.resources.dll
 @@ ------------ @@
  ./sdk/x.y.z/runtimes/win/
  ./sdk/x.y.z/runtimes/win/lib/