diff --git a/pelicanconf.py b/pelicanconf.py
index 3604023..6a35d8a 100644
--- a/pelicanconf.py
+++ b/pelicanconf.py
@@ -76,6 +76,8 @@ PLUGIN_PATHS = ['plugins']
 PLUGINS = ['neighbors']
 
 # Attila theme
+HEADER_COVERS_BY_CATEGORY = []
+HEADER_COVERS_BY_TAG = []
 HEADER_COVER = 'assets/backgrounds/sigean.jpg'
 COLOR_SCHEME_CSS = 'monokai.css'
 AUTHORS_BIO = {