diff --git a/src/calibre/db/write.py b/src/calibre/db/write.py
index 8b0f96107a..b12094225c 100644
--- a/src/calibre/db/write.py
+++ b/src/calibre/db/write.py
@@ -145,7 +145,7 @@ class Writer(object):
         self.field = field
         dt = field.metadata['datatype']
         self.accept_vals = lambda x: True
-        if dt == 'composite' or field.name in {'cover', 'size', 'path'}:
+        if dt == 'composite' or field.name in {'id', 'cover', 'size', 'path'}:
             self.set_books_func = dummy
         elif field.is_many:
             # TODO: Implement this
diff --git a/src/calibre/ebooks/oeb/polish/main.py b/src/calibre/ebooks/oeb/polish/main.py
index 7a2439c4ec..1691b52cad 100644
--- a/src/calibre/ebooks/oeb/polish/main.py
+++ b/src/calibre/ebooks/oeb/polish/main.py
@@ -76,7 +76,7 @@ etc.</p>'''),
 '''),
 
 'smarten_punctuation': _('''\
-<p>Convert plain text, dashes, ellipsis, multiple hyphens, etc. into their
+<p>Convert plain text dashes, ellipsis, multiple hyphens, etc. into their
 typographically correct equivalents.</p>
 <p>Note that the algorithm can sometimes generate incorrect results, especially
 when single quotes at the start of contractions are involved.</p>