--- /home/knut/.pyenv/versions/pelican/lib/python3.8/site-packages/pelican/readers.py.old	2021-01-16 21:53:36.342103461 +0900
+++ /home/knut/.pyenv/versions/pelican/lib/python3.8/site-packages/pelican/readers.py	2021-01-16 22:06:47.699735450 +0900
@@ -210,17 +210,18 @@
                            " Using 'en' instead.", lang_code)
             self._language_code = 'en'
 
-    def _parse_metadata(self, document, source_path):
+    def _parse_metadata(self, document, source_path, nowarning_about_missing_title):
         """Return the dict containing document metadata"""
         formatted_fields = self.settings['FORMATTED_FIELDS']
 
         output = {}
 
-        if document.first_child_matching_class(docutils.nodes.title) is None:
-            logger.warning(
-                'Document title missing in file %s: '
-                'Ensure exactly one top level section',
-                source_path)
+        if nowarning_about_missing_title is False:
+            if document.first_child_matching_class(docutils.nodes.title) is None:
+                logger.warning(
+                    'Document title missing in file %s: '
+                    'Ensure exactly one top level section',
+                    source_path)
 
         for docinfo in document.traverse(docutils.nodes.docinfo):
             for element in docinfo.children:
@@ -272,8 +273,12 @@
         parts = pub.writer.parts
         content = parts.get('body')
 
-        metadata = self._parse_metadata(pub.document, source_path)
-        metadata.setdefault('title', parts.get('title'))
+        title = parts.get('title')
+        if title:
+            metadata = self._parse_metadata(pub.document, source_path, nowarning_about_missing_title=False)
+            metadata.setdefault('title', title)
+        else:
+            metadata = self._parse_metadata(pub.document, source_path, nowarning_about_missing_title=True)
 
         return content, metadata