diff --git a/src/utils.v b/src/utils.v
index 19d6b321b3303958c444f063f1a75561b5e4ab9e..19c7b2cea8ba32d721125bf5c83a2035632ac23a 100644
--- a/src/utils.v
+++ b/src/utils.v
@@ -1,8 +1,6 @@
 Require Import Lia List Nat.
 Import ListNotations.
 
-Scheme Equality for list.
-
 Lemma list_elt_exists :
   forall (A : Type) (l : list A) (d : A) i,
     i < List.length l -> (exists a, List.nth_error l i = Some a).