1 files changed, 1 insertions, 0 deletions

diff --git a/lisp/frame.el b/lisp/frame.el
index 1a91ba306a2..55966c4f67a 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -604,6 +604,7 @@ is not considered (see `next-frame')."
   (select-frame-set-input-focus (selected-frame)))
 
 (declare-function x-initialize-window-system "term/x-win" ())
+(declare-function ns-initialize-window-system "term/ns-win" ())
 (defvar x-display-name)
 
 (defun make-frame-on-display (display &optional parameters)