1 files changed, 1 insertions, 0 deletions

diff --git a/src/lisp.h b/src/lisp.h
index 2566feeedba..e13a55cddb6 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -2199,6 +2199,7 @@ extern void syms_of_editfns P_ ((void));
 
 /* defined in buffer.c */
 extern void nsberror P_ ((Lisp_Object));
+extern char *no_switch_window P_ ((Lisp_Object window));
 EXFUN (Fset_buffer_multibyte, 1);
 EXFUN (Foverlay_start, 1);
 EXFUN (Foverlay_end, 1);