1 files changed, 1 insertions, 0 deletions
diff --git a/desktop/gui.h b/desktop/gui.h
index 72ead54b4..61b3088b5 100644
--- a/desktop/gui.h
+++ b/desktop/gui.h
@@ -18,6 +18,7 @@ typedef struct gui_window gui_window;
 #include <stdbool.h>
 #include "netsurf/desktop/browser.h"
 
+bool gui_window_in_list(gui_window *g);
 gui_window *gui_create_browser_window(struct browser_window *bw);
 gui_window *gui_create_download_window(struct content *content);
 void gui_window_destroy(gui_window* g);