diff --git a/src/Workspaces/Core/Desktop/Workspaces.Desktop.csproj b/src/Workspaces/Core/Desktop/Workspaces.Desktop.csproj
index 01929290d68542c7d1e65490e9c3e18f3409dc16..a47ef5b1c1ac4d2918ec5709183e3cec39d098bf 100644
--- a/src/Workspaces/Core/Desktop/Workspaces.Desktop.csproj
+++ b/src/Workspaces/Core/Desktop/Workspaces.Desktop.csproj
@@ -62,6 +62,9 @@
InternalUtilities\AssemblyReferenceResolver.cs
+
+ InternalUtilities\CodePage1252Encoding.cs
+
InternalUtilities\MetadataFileReferenceResolver.cs
@@ -181,4 +184,4 @@
-
+
\ No newline at end of file