diff --git a/std/list.nil b/std/list.nil
index b404871..d7e0184 100644
--- a/std/list.nil
+++ b/std/list.nil
@@ -1,21 +1,21 @@
-//type List[T] = struct {
-//    ptr: Int,
-//    len: Int,
-//    cap: Int,
-//};
-//
-//function new(): List[Int] = (
-//    List { ptr: 0, len: 0, cap: 0 }
-//);
-//
-//function push(list: List[Int], elem: Int) = (
-//    growIfNeeded(list, 1);
-//);
-//
+type List[T] = struct {
+    ptr: Int,
+    len: Int,
+    cap: Int,
+};
+
+function new(): List[Int] = (
+    List { ptr: 0, len: 0, cap: 0 }
+);
+
+function push(list: List[Int], elem: Int) = (
+    growIfNeeded(list, 1);
+);
+
 // PRIVATE:
-//
-//function growIfNeeded(list: List[Int], elems: Int) = (
-//    if (list.len + elems) < list.cap then (
-//        let newMemory = std.rt.alloc.allocateItem(0_I32, 0_I32);
-//    );
-//);
+
+function growIfNeeded(list: List[Int], elems: Int) = (
+    if (list.len + elems) < list.cap then (
+        let newMemory = std.rt.alloc.allocateItem(0_I32, 0_I32);
+    );
+);