--- a/openttd_vs80.vcproj	Thu Nov 30 13:52:31 2006 +0000
+++ b/openttd_vs80.vcproj	Thu Nov 30 16:03:12 2006 +0000
@@ -581,6 +581,26 @@
 				>
 			</File>
 			<File
+				RelativePath=".\helpers.cpp"
+				>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						CompileAs="2"
+					/>
+				</FileConfiguration>
+			</File>
+			<File
 				RelativePath=".\landscape.c"
 				>
 			</File>