diff --git a/projectfiles/VC9/wesnoth.vcproj b/projectfiles/VC9/wesnoth.vcproj
index c84000b277d..d7004f3504a 100644
--- a/projectfiles/VC9/wesnoth.vcproj
+++ b/projectfiles/VC9/wesnoth.vcproj
@@ -288,6 +288,10 @@
 		<Filter
 			Name="Addon"
 			>
+			<File
+				RelativePath="..\..\src\addon\info.hpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\src\addon\manager.cpp"
 				>