diff --git a/Visual Studio Projects/VAX780.vcproj b/Visual Studio Projects/VAX780.vcproj
index fdb15cc3..52c14deb 100644
--- a/Visual Studio Projects/VAX780.vcproj	
+++ b/Visual Studio Projects/VAX780.vcproj	
@@ -253,6 +253,10 @@
 				RelativePath="..\PDP11\pdp11_tu.c"
 				>
 			</File>
+			<File
+				RelativePath="..\PDP11\pdp11_vh.c"
+				>
+			</File>
 			<File
 				RelativePath="..\PDP11\pdp11_xu.c"
 				>