diff --git a/compiler/rustc_mir_build/src/thir/cx/expr.rs b/compiler/rustc_mir_build/src/thir/cx/expr.rs
index 994ac8a3286..a96d837b3ad 100644
--- a/compiler/rustc_mir_build/src/thir/cx/expr.rs
+++ b/compiler/rustc_mir_build/src/thir/cx/expr.rs
@@ -445,7 +445,6 @@ fn make_mirror_unadjusted(&mut self, expr: &'tcx hir::Expr<'tcx>) -> Expr<'tcx>
                     let rhs = self.mirror_expr(rhs);
                     self.overloaded_operator(expr, Box::new([lhs, rhs]))
                 } else {
-                    // FIXME overflow
                     match op.node {
                         hir::BinOpKind::And => ExprKind::LogicalOp {
                             op: LogicalOp::And,