diff --git a/projects/VC100/FlightGear/FlightGear.vcxproj b/projects/VC100/FlightGear/FlightGear.vcxproj
index 9d1ed5797..dad686e5f 100644
--- a/projects/VC100/FlightGear/FlightGear.vcxproj
+++ b/projects/VC100/FlightGear/FlightGear.vcxproj
@@ -623,6 +623,7 @@
     <ClCompile Include="..\..\..\src\Input\FGKeyboardInput.cxx" />
     <ClCompile Include="..\..\..\src\Input\FGMouseInput.cxx" />
     <ClCompile Include="..\..\..\src\Input\input.cxx" />
+    <ClCompile Include="..\..\..\src\Instrumentation\KLN89\kln89_page_alt.cxx" />
     <ClCompile Include="..\..\..\src\Instrumentation\rnav_waypt_controller.cxx" />
     <ClCompile Include="..\..\..\src\Main\bootstrap.cxx" />
     <ClCompile Include="..\..\..\src\Main\CameraGroup.cxx" />
@@ -1200,6 +1201,7 @@
     <ClInclude Include="..\..\..\src\Input\FGKeyboardInput.hxx" />
     <ClInclude Include="..\..\..\src\Input\FGMouseInput.hxx" />
     <ClInclude Include="..\..\..\src\Input\input.hxx" />
+    <ClInclude Include="..\..\..\src\Instrumentation\KLN89\kln89_page_alt.hxx" />
     <ClInclude Include="..\..\..\src\Instrumentation\rnav_waypt_controller.hxx" />
     <ClInclude Include="..\..\..\src\Main\CameraGroup.hxx" />
     <ClInclude Include="..\..\..\src\Main\fg_commands.hxx" />
diff --git a/projects/VC100/FlightGear/FlightGear.vcxproj.filters b/projects/VC100/FlightGear/FlightGear.vcxproj.filters
index 95059cdab..fa82e5d60 100644
--- a/projects/VC100/FlightGear/FlightGear.vcxproj.filters
+++ b/projects/VC100/FlightGear/FlightGear.vcxproj.filters
@@ -1533,6 +1533,9 @@
     <ClCompile Include="..\..\..\src\Instrumentation\rnav_waypt_controller.cxx">
       <Filter>Lib_Instrumentation</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\Instrumentation\KLN89\kln89_page_alt.cxx">
+      <Filter>Lib_KLN89</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\src\Aircraft\controls.hxx">
@@ -2918,6 +2921,9 @@
     <ClInclude Include="..\..\..\src\Instrumentation\rnav_waypt_controller.hxx">
       <Filter>Lib_Instrumentation</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\Instrumentation\KLN89\kln89_page_alt.hxx">
+      <Filter>Lib_KLN89</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\flightgear.rc" />