From 2ee03dde4e0909e079c2486489986408c03a3498 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 9 Mar 2025 22:23:11 +0530
Subject: [PATCH] Fix #8421

---
 kitty/line.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kitty/line.c b/kitty/line.c
index 6e17b5aef..66540a77f 100644
--- a/kitty/line.c
+++ b/kitty/line.c
@@ -189,7 +189,7 @@ prev_char_pos(const Line *self, index_type x, index_type num) {
     const CPUCell *ans = self->cpu_cells + x, *limit = self->cpu_cells - 1;
     if (ans->is_multicell) ans -= ans->x;
     while (num-- && --ans > limit) if (ans->is_multicell) ans -= ans->x;
-    return ans > limit ? ans - self->cpu_cells : self->xnum;
+    return ans > limit ? (index_type)(ans - self->cpu_cells) : self->xnum;
 }