1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/frame.el b/lisp/frame.el
index 15e46c9e210..b7fd71e9053 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -1344,7 +1344,7 @@ FRAME defaults to the selected frame."
 FRAME defaults to the selected frame."
   (setq frame (window-normalize-frame frame))
   (- (frame-native-height frame)
-     (tab-bar-height frame t)
+     (if (fboundp 'tab-bar-height) (tab-bar-height frame t) 0)
      (* 2 (frame-internal-border-width frame))))
 
 (defun frame-outer-width (&optional frame)