From 5acbb59afdc0d19d424cf0bd93da6b7299097116 Mon Sep 17 00:00:00 2001
From: sgouezel <sebastien.gouezel@univ-rennes1.fr>
Date: Fri, 4 Oct 2024 10:08:32 +0200
Subject: [PATCH] fix

---
 Mathlib/Analysis/Calculus/ContDiff/FaaDiBruno.lean | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Mathlib/Analysis/Calculus/ContDiff/FaaDiBruno.lean b/Mathlib/Analysis/Calculus/ContDiff/FaaDiBruno.lean
index 797a612ad0b29..781bb36371121 100644
--- a/Mathlib/Analysis/Calculus/ContDiff/FaaDiBruno.lean
+++ b/Mathlib/Analysis/Calculus/ContDiff/FaaDiBruno.lean
@@ -663,7 +663,7 @@ def extendEquiv (n : ℕ) :
         · intro j
           induction i using Fin.induction with
           | zero =>
-            simp only [cases_zero, cast_zero, coe_fin_one]
+            simp only [cases_zero, cast_zero, val_eq_zero]
             exact (apply_eq_of_range_eq_singleton h _).symm
           | succ i => simp
     · dsimp only