diff --git a/win32/orbital.vcxproj b/win32/orbital.vcxproj
index 49391575..6056a831 100644
--- a/win32/orbital.vcxproj
+++ b/win32/orbital.vcxproj
@@ -28,6 +28,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\orbital\CommandParser.h" />
+    <ClInclude Include="..\orbital\gun.h" />
     <ClInclude Include="..\orbital\mesh.h" />
     <ClInclude Include="..\orbital\orbital.h" />
     <ClInclude Include="..\orbital\particlesystem.h" />
diff --git a/win32/orbital.vcxproj.filters b/win32/orbital.vcxproj.filters
index b92503b3..48cbfbb5 100644
--- a/win32/orbital.vcxproj.filters
+++ b/win32/orbital.vcxproj.filters
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
+    <ClInclude Include="..\orbital\gun.h" />
     <ClInclude Include="..\orbital\mesh.h" />
     <ClInclude Include="..\orbital\CommandParser.h" />
     <ClInclude Include="..\orbital\player.h" />
@@ -17,4 +18,4 @@
   <ItemGroup>
     <ClCompile Include="..\orbital\orbital.cpp" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>