diff --git a/sys/teken/teken.c b/sys/teken/teken.c
index a54c9f96e044..0613255f4388 100644
--- a/sys/teken/teken.c
+++ b/sys/teken/teken.c
@@ -338,10 +338,26 @@ teken_get_winsize(teken_t *t)
 	return (&t->t_winsize);
 }
 
+static void
+taken_trim_cursor_pos(teken_t *t, const teken_pos_t *new)
+{
+	const teken_pos_t *cur;
+
+	cur = &t->t_winsize;
+
+	if (cur->tp_row < new->tp_row || cur->tp_col < new->tp_col)
+		return;
+	if (t->t_cursor.tp_row >= new->tp_row)
+		t->t_cursor.tp_row = new->tp_row - 1;
+	if (t->t_cursor.tp_col >= new->tp_col)
+		t->t_cursor.tp_col = new->tp_col - 1;
+}
+
 void
 teken_set_winsize(teken_t *t, const teken_pos_t *p)
 {
 
+	taken_trim_cursor_pos(t, p);
 	t->t_winsize = *p;
 	teken_subr_do_reset(t);
 }
@@ -350,6 +366,7 @@ void
 teken_set_winsize_noreset(teken_t *t, const teken_pos_t *p)
 {
 
+	taken_trim_cursor_pos(t, p);
 	t->t_winsize = *p;
 	teken_subr_do_resize(t);
 }