diff --git a/masque/builder/tools.py b/masque/builder/tools.py
index bb8a016..b80c1f8 100644
--- a/masque/builder/tools.py
+++ b/masque/builder/tools.py
@@ -489,7 +489,7 @@ class AutoTool(Tool, metaclass=ABCMeta):
             return self.abstract.ports[self.their_port_name]
 
         def reversed(self) -> Self:
-            return type(self)(self.abstract, self.their_port_name, self.our_port_name)
+            return type(self)(self.abstract, self.our_port_name, self.their_port_name)
 
     @dataclass(frozen=True, slots=True)
     class LData: