diff --git a/src/libraries/System.IO.Compression/src/System.IO.Compression.csproj b/src/libraries/System.IO.Compression/src/System.IO.Compression.csproj
index c72e1efe1d67e8..6b25e05fc2d74e 100644
--- a/src/libraries/System.IO.Compression/src/System.IO.Compression.csproj
+++ b/src/libraries/System.IO.Compression/src/System.IO.Compression.csproj
@@ -46,6 +46,8 @@
           Link="Common\System\IO\Compression\ZLibNative.CompressionLevel.cs" />
     <Compile Include="$(CommonPath)System\IO\Compression\ZLibNative.ZStream.cs"
              Link="Common\System\IO\Compression\ZLibNative.ZStream.cs" />
+    <Compile Include="$(CommonPath)DisableRuntimeMarshalling.cs"
+             Link="Common\DisableRuntimeMarshalling.cs" />
     <Compile Include="$(CommonPath)System\IO\SubReadStream.cs"
              Link="Common\System\IO\SubReadStream.cs" />
     <Compile Include="System\IO\Compression\CompressionFormat.cs" />
diff --git a/src/libraries/System.Net.Primitives/src/System.Net.Primitives.csproj b/src/libraries/System.Net.Primitives/src/System.Net.Primitives.csproj
index cde7d325ba6d7d..20c5c1bfdd345f 100644
--- a/src/libraries/System.Net.Primitives/src/System.Net.Primitives.csproj
+++ b/src/libraries/System.Net.Primitives/src/System.Net.Primitives.csproj
@@ -87,6 +87,8 @@
              Link="Common\System\Net\Logging\NetEventSource.Common.cs" />
     <Compile Include="$(CommonPath)System\NotImplemented.cs"
              Link="Common\System\NotImplemented.cs" />
+    <Compile Include="$(CommonPath)DisableRuntimeMarshalling.cs"
+             Link="Common\DisableRuntimeMarshalling.cs" />
     <Compile Include="$(CommonPath)Interop\Windows\Crypt32\Interop.Alg.cs"
              Link="Common\Interop\Windows\Crypt32\Interop.Alg.cs" />
     <Compile Include="$(CommonPath)Interop\Windows\SChannel\Interop.SchProtocols.cs"
diff --git a/src/libraries/System.Net.WebSockets/src/System.Net.WebSockets.csproj b/src/libraries/System.Net.WebSockets/src/System.Net.WebSockets.csproj
index 6725eba0e435fb..62de3d9a34c2b6 100644
--- a/src/libraries/System.Net.WebSockets/src/System.Net.WebSockets.csproj
+++ b/src/libraries/System.Net.WebSockets/src/System.Net.WebSockets.csproj
@@ -44,6 +44,8 @@
           Link="Common\System\IO\Compression\ZLibNative.CompressionLevel.cs" />
     <Compile Include="$(CommonPath)System\IO\Compression\ZLibNative.ZStream.cs"
              Link="Common\System\IO\Compression\ZLibNative.ZStream.cs" />
+    <Compile Include="$(CommonPath)DisableRuntimeMarshalling.cs"
+             Link="Common\DisableRuntimeMarshalling.cs" />
     <Compile Include="$(CommonPath)Interop\Interop.zlib.cs"
              Link="Common\Interop\Interop.zlib.cs" />
     <Compile Include="$(CommonPath)System\Obsoletions.cs"
diff --git a/src/libraries/System.Runtime.InteropServices.JavaScript/src/System.Runtime.InteropServices.JavaScript.csproj b/src/libraries/System.Runtime.InteropServices.JavaScript/src/System.Runtime.InteropServices.JavaScript.csproj
index 839251733374e8..c629e92a18757a 100644
--- a/src/libraries/System.Runtime.InteropServices.JavaScript/src/System.Runtime.InteropServices.JavaScript.csproj
+++ b/src/libraries/System.Runtime.InteropServices.JavaScript/src/System.Runtime.InteropServices.JavaScript.csproj
@@ -25,6 +25,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'browser'">
+    <Compile Include="$(CommonPath)DisableRuntimeMarshalling.cs" Link="Common\DisableRuntimeMarshalling.cs" />
     <Compile Include="$(CommonPath)Interop\Browser\Interop.Runtime.Mono.cs" Link="System\Runtime\InteropServices\JavaScript\Interop\Interop.Runtime.Mono.cs" Condition="'$(RuntimeFlavor)' == 'Mono'" />
     <Compile Include="$(CommonPath)Interop\Browser\Interop.Runtime.CoreCLR.cs" Link="System\Runtime\InteropServices\JavaScript\Interop\Interop.Runtime.CoreCLR.cs" Condition="'$(RuntimeFlavor)' == 'CoreCLR'" />
     <Compile Include="$(CommonPath)Interop\Unix\Interop.Libraries.cs" Link="System\Runtime\InteropServices\JavaScript\Interop\Interop.Libraries.cs" Condition="'$(RuntimeFlavor)' == 'CoreCLR'" />