diff --git a/project/vc8/nvmath/nvmath.vcproj b/project/vc8/nvmath/nvmath.vcproj
index ac27e4e..8dc38d1 100644
--- a/project/vc8/nvmath/nvmath.vcproj
+++ b/project/vc8/nvmath/nvmath.vcproj
@@ -277,6 +277,10 @@
 			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
 			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
 			>
+			<File
+				RelativePath="..\..\..\src\nvmath\Plane.cpp"
+				>
+			</File>
 		</Filter>
 		<Filter
 			Name="Header Files"
@@ -295,6 +299,10 @@
 				RelativePath="..\..\..\src\nvmath\Matrix.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\nvmath\Plane.h"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\src\nvmath\Vector.h"
 				>