diff --git a/project/vc8/nvtt/nvtt.vcproj b/project/vc8/nvtt/nvtt.vcproj
index 32c1d77..8e04b04 100644
--- a/project/vc8/nvtt/nvtt.vcproj
+++ b/project/vc8/nvtt/nvtt.vcproj
@@ -901,6 +901,10 @@
 				RelativePath="..\..\..\src\nvtt\nvtt.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\..\src\nvtt\OutputOptions.h"
+				>
+			</File>
 			<File
 				RelativePath="..\..\..\src\nvtt\QuickCompressDXT.h"
 				>