1 files changed, 1 insertions, 1 deletions
diff --git a/tmux.h b/tmux.h
index 1af4d073..53fd9b28 100644
--- a/tmux.h
+++ b/tmux.h
@@ -2225,7 +2225,7 @@ struct layout_cell *layout_split_pane(
 void		 layout_close_pane(struct window_pane *);
 
 /* layout-custom.c */
-char		*layout_dump(struct window *);
+char		*layout_dump(struct layout_cell *);
 int		 layout_parse(struct window *, const char *);
 
 /* layout-set.c */