diff --git a/GNUmakefile b/GNUmakefile
index 3f2375ad..ecb1eb0e 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,4 +1,4 @@
-# $Id: GNUmakefile,v 1.47 2009-01-10 12:52:57 nicm Exp $
+# $Id: GNUmakefile,v 1.48 2009-01-10 19:40:01 nicm Exp $
 
 .PHONY: clean
 
@@ -32,8 +32,10 @@ SRCS= tmux.c server.c server-msg.c server-fn.c buffer.c buffer-poll.c status.c \
       cmd-show-buffer.c cmd-list-buffers.c cmd-delete-buffer.c \
       cmd-list-commands.c cmd-move-window.c cmd-select-prompt.c \
       cmd-respawn-window.c cmd-source-file.c cmd-server-info.c \
-      window-scroll.c window-more.c window-copy.c options.c paste.c \
-      tty.c tty-term.c tty-keys.c tty-write.c colour.c utf8.c options-cmd.c
+      cmd-clock-mode.c \
+      window-clock.c window-scroll.c window-more.c window-copy.c \
+      options.c options-cmd.c paste.c colour.c utf8.c \
+      tty.c tty-term.c tty-keys.c tty-write.c
 
 CC?= gcc
 INCDIRS+= -I. -I-
diff --git a/window-clock.c b/window-clock.c
index ef231db2..9e075000 100644
--- a/window-clock.c
+++ b/window-clock.c
@@ -1,4 +1,4 @@
-/* $Id: window-clock.c,v 1.1 2009-01-10 19:35:40 nicm Exp $ */
+/* $Id: window-clock.c,v 1.2 2009-01-10 19:40:01 nicm Exp $ */
 
 /*
  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -19,6 +19,7 @@
 #include <sys/types.h>
 
 #include <string.h>
+#include <time.h>
 
 #include "tmux.h"