diff --git a/src/State.php b/src/State.php
index d2a5ea7..efa9813 100644
--- a/src/State.php
+++ b/src/State.php
@@ -108,9 +108,9 @@ final class State implements StateBearer
     }
 
     /** @return self */
-    public static function from(State $State)
+    public static function from(StateBearer $StateBearer)
     {
-        return $State;
+        return $StateBearer->state();
     }
 
     public function isolatedCopy(): self
diff --git a/src/StateBearer.php b/src/StateBearer.php
index 8e64bef..f5580ec 100644
--- a/src/StateBearer.php
+++ b/src/StateBearer.php
@@ -6,5 +6,5 @@ interface StateBearer
 {
     public function state(): State;
     /** @return static */
-    public static function from(State $State);
+    public static function from(StateBearer $StateBearer);
 }