diff --git a/src/calibre/library/catalog.py b/src/calibre/library/catalog.py
index 893c7dd1c9..96310d2111 100644
--- a/src/calibre/library/catalog.py
+++ b/src/calibre/library/catalog.py
@@ -833,7 +833,7 @@ class EPUB_MOBI(CatalogPlugin):
         def buildSources(self):
             if self.booksByTitle is None:
                 self.fetchBooksByTitle()
-            if self.booksByTitle is None:
+            if not len(self.booksByTitle):
                 return False
             self.fetchBooksByAuthor()
             self.generateHTMLDescriptions()
@@ -3242,6 +3242,8 @@ class EPUB_MOBI(CatalogPlugin):
                     OptionRecommendation.HIGH))
                 recommendations.append(('no_inline_toc', True,
                     OptionRecommendation.HIGH))
+                recommendations.append(('book_producer',opts.output_profile,
+                    OptionRecommendation.HIGH))
 
             # Run ebook-convert
             from calibre.ebooks.conversion.plumber import Plumber