diff --git a/masque/builder/pather_mixin.py b/masque/builder/pather_mixin.py
index 571f0bb..9319a59 100644
--- a/masque/builder/pather_mixin.py
+++ b/masque/builder/pather_mixin.py
@@ -440,6 +440,9 @@ class PatherMixin(metaclass=ABCMeta):
         self.pattern.flatten(self.library)
         return self
 
+    def at(self, portspec: str) -> 'PortPather':
+        return PortPather(portspec, self)
+
 
 
 class PortPather: