diff --git a/projectfiles/VC9/wesnoth.vcproj b/projectfiles/VC9/wesnoth.vcproj
index 9a7942c15c08..79ec77950c89 100644
--- a/projectfiles/VC9/wesnoth.vcproj
+++ b/projectfiles/VC9/wesnoth.vcproj
@@ -21268,6 +21268,18 @@
 			RelativePath="..\..\src\variable.hpp"
 			>
 		</File>
+		<File
+			RelativePath="..\..\src\variable_info.cpp"
+			>
+		</File>
+		<File
+			RelativePath="..\..\src\variable_info.hpp"
+			>
+		</File>
+		<File
+			RelativePath="..\..\src\variable_info_detail.hpp"
+			>
+		</File>
 		<File
 			RelativePath="..\..\src\variant.cpp"
 			>