diff --git a/src/display.h b/src/display.h
index e322987..d4964cf 100644
--- a/src/display.h
+++ b/src/display.h
@@ -16,7 +16,7 @@ typedef struct
 
 void display_main(Sheet *cursheet);
 void display_init(Sheet *cursheet, int always_redraw);
-void display_end(void);
+void display_end(Sheet *sheet);
 void redraw_cell(Sheet *sheet, const Location at);
 void redraw_sheet(Sheet *sheet);
 const char *line_file(const char *file, const char *pattern, const char *title, int create);