diff --git a/src/calibre/customize/builtins.py b/src/calibre/customize/builtins.py
index 7dfba3a899..948d4c9b7d 100644
--- a/src/calibre/customize/builtins.py
+++ b/src/calibre/customize/builtins.py
@@ -51,7 +51,7 @@ every time you add an HTML file to the library.\
 
 
 class PML2PMLZ(FileTypePlugin):
-    name = 'PML to ZIP'
+    name = 'PML to PMLZ'
     author = 'John Schember'
     description = textwrap.dedent(_('''\
 Create a PMLZ archive containging the PML file \