diff --git a/src/Makefile.in b/src/Makefile.in
index 9b713af27a6..bd1dbe08b68 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -484,7 +484,9 @@ obj=    dispnew.o frame.o scroll.o xdisp.o window.o \
 /* Object files used on some machine or other.
    These go in the DOC file on all machines
    in case they are needed there.  */
-SOME_MACHINE_OBJECTS = sunfns.o
+SOME_MACHINE_OBJECTS = sunfns.o msdos.o \
+  xterm.o xfns.o xfaces.o xmenu.o xselect.o xrdb.o
+
 
 #ifdef TERMINFO
 /* Used to be -ltermcap here.  If your machine needs that,