diff --git a/share/man/man1/gpo.1 b/share/man/man1/gpo.1
index 200bf07..0852866 100644
--- a/share/man/man1/gpo.1
+++ b/share/man/man1/gpo.1
@@ -1,4 +1,4 @@
-.TH GPO "1" "April 2020" "gpodder 4.11.1" "User Commands"
+.TH GPO "1" "April 2020" "gpodder 4.11.2" "User Commands"
 .SH NAME
 gpo \- gPodder command-line interface
 .SH SYNOPSIS
diff --git a/src/gpodder/__init__.py b/src/gpodder/__init__.py
index f5805c3..1750af5 100644
--- a/src/gpodder/__init__.py
+++ b/src/gpodder/__init__.py
@@ -50,7 +50,7 @@
 # This metadata block gets parsed by setup.py - use single quotes only
 __tagline__ = 'Media and podcast aggregator'
 __author__ = 'Thomas Perl <thp@gpodder.org>'
-__version__ = '4.11.1'
+__version__ = '4.11.2'
 __date__ = '2020-04-10'
 __relname__ = 'Geshem'
 __copyright__ = '© 2005-2020 Thomas Perl and the gPodder Team'
diff --git a/src/gpodder/model.py b/src/gpodder/model.py
index aa4f092..df3159d 100644
--- a/src/gpodder/model.py
+++ b/src/gpodder/model.py
@@ -566,8 +566,9 @@ def check_download_folder(self):
 
                 known_files.add(filename)
 
-        known_files.update(os.path.join(self.cover_file + ext)
-                           for ext in coverart.CoverDownloader.EXTENSIONS)
+        if self.cover_file:
+            known_files.update(os.path.join(self.cover_file + ext)
+                               for ext in coverart.CoverDownloader.EXTENSIONS)
 
         for episode in self.episodes:
             filename = episode.art_file