diff --git a/project/vc9/nvcore/nvcore.vcproj b/project/vc9/nvcore/nvcore.vcproj
index 70f3c98..871e896 100644
--- a/project/vc9/nvcore/nvcore.vcproj
+++ b/project/vc9/nvcore/nvcore.vcproj
@@ -386,6 +386,10 @@
 			RelativePath="..\..\..\src\nvcore\TextWriter.h"
 			>
 		</File>
+		<File
+			RelativePath="..\..\..\src\nvcore\Timer.cpp"
+			>
+		</File>
 		<File
 			RelativePath="..\..\..\src\nvcore\Timer.h"
 			>