diff --git a/src/frame.h b/src/frame.h
index d28afde3814..7db48632105 100644
--- a/src/frame.h
+++ b/src/frame.h
@@ -692,6 +692,9 @@ extern Lisp_Object Vdefault_frame_alist;
 extern Lisp_Object Vterminal_frame;
 
 extern Lisp_Object Vmouse_highlight;
+
+enum text_cursor_kinds get_specified_cursor_type P_ ((Lisp_Object, int *));
+enum text_cursor_kinds get_window_cursor_type P_ ((struct window *, int *, int *));
 
 /* Device-independent scroll bar stuff.  */