diff --git a/src/Trait.ts b/src/Trait.ts
index eb8d353..c92ebd6 100644
--- a/src/Trait.ts
+++ b/src/Trait.ts
@@ -115,7 +115,7 @@ export namespace Trait {
         > &
         Pipe<T, [
             Trait.SupertraitsFn,
-            Tuples.Prepend<T>,
+            Tuples.Append<T>,
             Tuples.Map<Trait.OwnClassFn>,
             Tuples.Map<StaticMembersFn>,
             ExtendFn,
@@ -129,7 +129,7 @@ export namespace Trait {
     export type Instance<T> = (
         Pipe<T, [
             Trait.SupertraitsFn,
-            Tuples.Prepend<T>,
+            Tuples.Append<T>,
             Tuples.Map<Trait.OwnInstanceFn>,
             ExtendFn,
             SimplifyFn,
diff --git a/src/tests.ts b/src/tests.ts
index dd89c0e..eebcd3c 100644
--- a/src/tests.ts
+++ b/src/tests.ts
@@ -53,7 +53,7 @@ const ActiveStatefulSubscription = expression
         Super => class ActiveStatefulSubscription extends Super {},
     )
 
-// type T = Trait.Instance<typeof ActiveStatefulSubscription>
+type ActiveStatefulSubscriptionClass = Trait.Class<typeof ActiveStatefulSubscription>
 
 
 class TestSuperclass {
diff --git a/src/util/index.ts b/src/util/index.ts
index 720a972..8407008 100644
--- a/src/util/index.ts
+++ b/src/util/index.ts
@@ -1,3 +1,7 @@
 export * from "./extend"
 export * from "./inheritance"
 export * from "./misc"
+
+export namespace util {
+
+}