diff --git a/win32/orbital.vcxproj b/win32/orbital.vcxproj
index a9f40622..f6662cf0 100644
--- a/win32/orbital.vcxproj
+++ b/win32/orbital.vcxproj
@@ -29,6 +29,7 @@
   <ItemGroup>
     <ClInclude Include="..\orbital\mesh.h" />
     <ClInclude Include="..\orbital\orbital.h" />
+    <ClInclude Include="..\orbital\particlesystem.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\orbital\orbital.cpp" />
diff --git a/win32/orbital.vcxproj.filters b/win32/orbital.vcxproj.filters
index d83e2188..ed3dae58 100644
--- a/win32/orbital.vcxproj.filters
+++ b/win32/orbital.vcxproj.filters
@@ -6,6 +6,9 @@
   <ItemGroup>
     <ClInclude Include="..\orbital\orbital.h" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\orbital\particlesystem.h" />
+  </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\orbital\orbital.cpp" />
   </ItemGroup>