diff --git a/ymmsl/v0_1/settings.py b/ymmsl/v0_1/settings.py
index 941b444..2c9e72c 100644
--- a/ymmsl/v0_1/settings.py
+++ b/ymmsl/v0_1/settings.py
@@ -83,9 +83,9 @@ def __delitem__(self, key: Union[str, Reference]) -> None:
             key = Reference(key)
         del self._store[key]
 
-    def __iter__(self) -> Iterator[Tuple[Reference, SettingValue]]:
-        """Iterate through the settings' key, value pairs."""
-        return iter(self._store)  # type: ignore
+    def __iter__(self) -> Iterator[Reference]:
+        """Iterate through the settings' keys."""
+        return iter(self._store)
 
     def __len__(self) -> int:
         """Returns the number of settings."""