From 9c0d7b83b1d71d8f151dcd798c088d41f9b44f00 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 1 Mar 2026 16:11:21 +0530
Subject: [PATCH] Fix #9577

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

diff --git a/kitty/mouse.c b/kitty/mouse.c
index 70d0dcf7b..b732c8bdc 100644
--- a/kitty/mouse.c
+++ b/kitty/mouse.c
@@ -1195,7 +1195,7 @@ mouse_event(const int button, int modifiers, int action) {
         }
         return;
     }
-    Edge window_border;
+    Edge window_border = 0;
     w = window_for_event(&window_idx, &in_tab_bar, &window_border);
     set_currently_hovered_window(w ? w->id : 0, modifiers);