diff --git a/src/diffpy/pdfmorph/__init__.py b/src/diffpy/pdfmorph/__init__.py
index 9a797739..db1b45ee 100644
--- a/src/diffpy/pdfmorph/__init__.py
+++ b/src/diffpy/pdfmorph/__init__.py
@@ -24,8 +24,5 @@
 # silence the pyflakes syntax checker
 assert __version__ or True
 
-# key used when saving multiple morphs
-__save_morph_as__ = "save_morph_as"
-
 
 # End of file