diff --git a/astrowidgets/ginga.py b/astrowidgets/ginga.py
index 0651e76..08b3937 100644
--- a/astrowidgets/ginga.py
+++ b/astrowidgets/ginga.py
@@ -980,7 +980,7 @@ def save(self, filename, overwrite=False):
 
         Parameters
         ----------
-        filename : str
+        filename : str or `os.PathLike`
             Name of file to save to.
 
         overwrite : bool, optional
diff --git a/astrowidgets/interface_definition.py b/astrowidgets/interface_definition.py
index 64d6c25..42635a1 100644
--- a/astrowidgets/interface_definition.py
+++ b/astrowidgets/interface_definition.py
@@ -96,7 +96,7 @@ def save(self, filename: str | os.PathLike, overwrite: bool = False) -> None:
 
         Parameters
         ----------
-        filename : str
+        filename : str or `os.PathLike`
             The file to save to. The format is determined by the
             extension.