diff --git a/src/nouveau/compiler/nak/ir.rs b/src/nouveau/compiler/nak/ir.rs
index 719501cb0ac..8a398003d36 100644
--- a/src/nouveau/compiler/nak/ir.rs
+++ b/src/nouveau/compiler/nak/ir.rs
@@ -9756,7 +9756,7 @@ impl Shader<'_> {
                 assert!(self.functions.len() == 1);
                 vertex_info.isbe_space_sharing_enable =
                     can_isbe_space_sharing_be_enabled(
-                        self.functions.get(0).unwrap(),
+                        self.functions.first().unwrap(),
                     );
             }
         }