diff --git a/src/Typeclass/Monoid.php b/src/Typeclass/Monoid.php
index bc73332..b5cdc22 100644
--- a/src/Typeclass/Monoid.php
+++ b/src/Typeclass/Monoid.php
@@ -12,9 +12,9 @@
 interface Monoid extends Semigroup
 {
     /**
-     * @return Monoid<A>
+     * @return A
      *
      * @psalm-pure
      */
-    public static function mempty(): Monoid;
+    public static function mempty();
 }