diff --git a/koerce/patterns.py b/koerce/patterns.py
index e4822f2..819d222 100644
--- a/koerce/patterns.py
+++ b/koerce/patterns.py
@@ -1220,7 +1220,7 @@ class Capture(Pattern):
 
     """
 
-    key: str | Deferred | Builder
+    key: str
     what: Pattern
 
     def __init__(self, key: str | Deferred | Builder, what=_any):