diff --git a/zdoom.vcproj b/zdoom.vcproj
index 9c3367ff2..ef356b44a 100644
--- a/zdoom.vcproj
+++ b/zdoom.vcproj
@@ -1942,6 +1942,10 @@
 				RelativePath=".\src\win32\fb_ddraw.cpp"
 				>
 			</File>
+			<File
+				RelativePath=".\src\g_doomedmap.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\src\win32\hardware.cpp"
 				>