diff --git a/src/calibre/ebooks/metadata/sources/google.py b/src/calibre/ebooks/metadata/sources/google.py
index 10086e1ee8..2ad81af325 100644
--- a/src/calibre/ebooks/metadata/sources/google.py
+++ b/src/calibre/ebooks/metadata/sources/google.py
@@ -36,7 +36,7 @@ def pretty_google_books_comments(raw):
     # Paragraphs in the comments are removed but whatever software googl uses
     # to do this does not insert a space so we often find the pattern
     # word.Capital in the comments which can be used to find paragraph markers.
-    raw = re.sub(r'([a-z])\.([A-Z])', '\\1.\n\n\\2', raw)
+    raw = re.sub(r'([a-z)"”])\.([A-Z("“])', '\\1.\n\n\\2', raw)
     return raw