diff --git a/clippy_lints/src/identity_op.rs b/clippy_lints/src/identity_op.rs
index 73bdd67ff5d..414f465c494 100644
--- a/clippy_lints/src/identity_op.rs
+++ b/clippy_lints/src/identity_op.rs
@@ -66,7 +66,6 @@ fn is_allowed(cx: &LateContext<'_>, cmp: BinOp, left: &Expr<'_>, right: &Expr<'_
         && constant_simple(cx, cx.typeck_results(), left) == Some(Constant::Int(1))
 }
 
-#[allow(clippy::cast_possible_wrap)]
 fn check(cx: &LateContext<'_>, e: &Expr<'_>, m: i8, span: Span, arg: Span) {
     if let Some(Constant::Int(v)) = constant_simple(cx, cx.typeck_results(), e) {
         let check = match *cx.typeck_results().expr_ty(e).kind() {