diff --git a/distrib/msw/tmake/filelist.txt b/distrib/msw/tmake/filelist.txt
index d4013fd5de..fac1e049c7 100644
--- a/distrib/msw/tmake/filelist.txt
+++ b/distrib/msw/tmake/filelist.txt
@@ -525,6 +525,7 @@ utilsexc.cpp	O	B
 wave.cpp	O
 window.cpp	O
 gsocket.c	O
+gsockpm.c	O
 
 helpdata.cpp	H
 helpfrm.cpp	H