diff --git a/osc/conf.py b/osc/conf.py
index 3bd6ea8f..3f0aa0f8 100644
--- a/osc/conf.py
+++ b/osc/conf.py
@@ -295,7 +295,7 @@ def get_config(override_conffile = None,
     config['packagecachedir'] = os.path.expanduser(config['packagecachedir'])
 
     re_clist = re.compile('[, ]+')
-    config['extra-pkgs'] = [ i.strip() for i in re_clist.split(config['extra-pkgs'].strip()) ]
+    config['extra-pkgs'] = [ i.strip() for i in re_clist.split(config['extra-pkgs'].strip()) if i ]
     if config['extra-pkgs'] == []: 
         config['extra-pkgs'] = None