diff --git a/lisp/channel-tui-main.lisp b/lisp/channel-tui-main.lisp
index 739a00c..05ee26e 100644
--- a/lisp/channel-tui-main.lisp
+++ b/lisp/channel-tui-main.lisp
@@ -809,7 +809,9 @@
                 (cl-tty.input:read-event be :timeout 0)
               (cond
                 ((eq type :resize)
-                 (multiple-value-setq (w h) (cl-tty.backend:backend-size be))
+                 (multiple-value-setq (w h)
+                   (or (ignore-errors (cl-tty.backend:backend-size be))
+                       (values 80 24)))
                  (setf prev-fb (cl-tty.rendering:make-framebuffer w h)
                        curr-fb (cl-tty.rendering:make-framebuffer w h))
                  (setf (getf *state* :dirty) (list t t t)))
diff --git a/org/channel-tui-main.org b/org/channel-tui-main.org
index be1706a..165f38c 100644
--- a/org/channel-tui-main.org
+++ b/org/channel-tui-main.org
@@ -852,7 +852,9 @@ Event handlers + daemon I/O + main loop.
                 (cl-tty.input:read-event be :timeout 0)
               (cond
                 ((eq type :resize)
-                 (multiple-value-setq (w h) (cl-tty.backend:backend-size be))
+                 (multiple-value-setq (w h)
+                   (or (ignore-errors (cl-tty.backend:backend-size be))
+                       (values 80 24)))
                  (setf prev-fb (cl-tty.rendering:make-framebuffer w h)
                        curr-fb (cl-tty.rendering:make-framebuffer w h))
                  (setf (getf *state* :dirty) (list t t t)))