diff --git a/amaranth/hdl/_ast.py b/amaranth/hdl/_ast.py
index 1293f871d..096f5286f 100644
--- a/amaranth/hdl/_ast.py
+++ b/amaranth/hdl/_ast.py
@@ -3251,7 +3251,7 @@ def __lt__(self, other):
         return self._intern < other._intern
 
     def __repr__(self):
-        return f"<{__qualname__}.SignalKey {self.signal!r}>"
+        return f"<{type(self).__qualname__} {self.signal!r}>"
 
 
 class SignalDict(_MappedKeyDict):