diff --git a/src/cascadia/PublicTerminalCore/HwndTerminal.cpp b/src/cascadia/PublicTerminalCore/HwndTerminal.cpp
index c86f5d621..e0e8d612d 100644
--- a/src/cascadia/PublicTerminalCore/HwndTerminal.cpp
+++ b/src/cascadia/PublicTerminalCore/HwndTerminal.cpp
@@ -549,11 +549,11 @@ try
 
     if (multiClickMapper == 3)
     {
-        _terminal->MultiClickSelection(cursorPosition / fontSize, ::Terminal::SelectionExpansionMode::Line);
+        _terminal->MultiClickSelection(cursorPosition / fontSize, winrt::Microsoft::Terminal::Core::SelectionExpansion::Line);
     }
     else if (multiClickMapper == 2)
     {
-        _terminal->MultiClickSelection(cursorPosition / fontSize, ::Terminal::SelectionExpansionMode::Word);
+        _terminal->MultiClickSelection(cursorPosition / fontSize, winrt::Microsoft::Terminal::Core::SelectionExpansion::Word);
     }
     else
     {
diff --git a/src/cascadia/PublicTerminalCore/PublicTerminalCore.vcxproj b/src/cascadia/PublicTerminalCore/PublicTerminalCore.vcxproj
index 1665034e1..44be0dd3c 100644
--- a/src/cascadia/PublicTerminalCore/PublicTerminalCore.vcxproj
+++ b/src/cascadia/PublicTerminalCore/PublicTerminalCore.vcxproj
@@ -44,6 +44,13 @@
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
     </ClCompile>
   </ItemDefinitionGroup>
+
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>$(SolutionDir)src\cascadia\TerminalCore\lib\Generated Files\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+  </ItemDefinitionGroup>
+
   <Import Project="$(SolutionDir)src\common.build.post.props" />
 
   <!-- LATE LINK LINE OVERRIDES. This project must link named forwarders
diff --git a/src/cascadia/PublicTerminalCore/pch.h b/src/cascadia/PublicTerminalCore/pch.h
index 8554ff03b..746a4151e 100644
--- a/src/cascadia/PublicTerminalCore/pch.h
+++ b/src/cascadia/PublicTerminalCore/pch.h
@@ -9,3 +9,5 @@
 #endif
 
 #include <LibraryIncludes.h>
+#define CPPWINRT_VERSION "2.0.210309.3"
+#include "winrt/Microsoft.Terminal.Core.h"