diff --git a/src/Make_vms.mms b/src/Make_vms.mms
index c3b7958..42adcb8 100644
--- a/src/Make_vms.mms
+++ b/src/Make_vms.mms
@@ -317,8 +317,8 @@
 	getchar.c hardcopy.c hashtab.c highlight.c \
 	indent.c insexpand.c json.c list.c main.c map.c mark.c menu.c mbyte.c \
 	memfile.c memline.c message.c misc1.c misc2.c move.c normal.c ops.c \
-	option.c popupmnu.c popupwin.c profiler.c quickfix.c regexp.c \
-	scriptfile.c \
+	option.c optionstr.c popupmnu.c popupwin.c profiler.c quickfix.c \
+	regexp.c scriptfile.c \
 	search.c session.c sha256.c sign.c spell.c spellfile.c syntax.c tag.c \
 	term.c termlib.c testing.c textprop.c ui.c undo.c usercmd.c \
 	userfunc.c version.c viminfo.c screen.c window.c os_unix.c os_vms.c \
@@ -337,8 +337,8 @@
 	highlight.obj indent.obj insexpand.obj json.obj list.obj main.obj \
 	map.obj mark.obj menu.obj memfile.obj memline.obj message.obj \
 	misc1.obj misc2.obj move.obj mbyte.obj normal.obj ops.obj option.obj \
-	popupmnu.obj popupwin.obj profiler.obj quickfix.obj regexp.obj \
-	scriptfile.obj \
+	optionstr.obj popupmnu.obj popupwin.obj profiler.obj quickfix.obj \
+	regexp.obj scriptfile.obj \
 	search.obj session.obj sha256.obj sign.obj spell.obj spellfile.obj \
 	syntax.obj tag.obj term.obj termlib.obj testing.obj textprop.obj \
 	ui.obj undo.obj usercmd.obj userfunc.obj screen.obj version.obj \
@@ -715,6 +715,10 @@
  ascii.h keymap.h term.h macros.h structs.h regexp.h \
  gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \
  globals.h optiondefs.h
+optionstr.obj : optionstr.c vim.h [.auto]config.h feature.h os_unix.h \
+ ascii.h keymap.h term.h macros.h structs.h regexp.h \
+ gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \
+ globals.h
 os_unix.obj : os_unix.c vim.h [.auto]config.h feature.h os_unix.h \
  ascii.h keymap.h term.h macros.h structs.h regexp.h \
  gui.h beval.h [.proto]gui_beval.pro option.h ex_cmds.h proto.h \