diff --git a/compiler/gen/src/llvm/build.rs b/compiler/gen/src/llvm/build.rs
index a10c2df0f3..1eccf1e5da 100644
--- a/compiler/gen/src/llvm/build.rs
+++ b/compiler/gen/src/llvm/build.rs
@@ -1088,6 +1088,7 @@ fn call_with_args<'a, 'ctx, 'env>(
             }
         }
         Symbol::LIST_SET => {
+            // List.set : List elem, Int, elem -> List elem
             let builder = env.builder;
 
             debug_assert!(args.len() == 3);
diff --git a/compiler/gen/tests/test_gen.rs b/compiler/gen/tests/test_gen.rs
index 4bc6b294bd..135cdefcb1 100644
--- a/compiler/gen/tests/test_gen.rs
+++ b/compiler/gen/tests/test_gen.rs
@@ -574,7 +574,7 @@ mod test_gen {
 
     #[test]
     fn set_shared_int_list() {
-        assert_evals_to!(
+        assert_llvm_evals_to!(
             indoc!(
                 r#"
                     shared = [ 2, 4 ]
@@ -585,8 +585,9 @@ mod test_gen {
                     { x, y: List.getUnsafe shared 1 }
                 "#
             ),
-            (4, 77),
-            (i64, i64)
+            (77, 4),
+            (i64, i64),
+            |x| x
         );
     }