diff --git a/src/mio/yum.py b/src/mio/yum.py
index bb368c4c540c38132d697565da144bd45e713d6a..d02dcc4c91b404b3ef733b3c83cc6055de4a6a6d 100755
--- a/src/mio/yum.py
+++ b/src/mio/yum.py
@@ -54,7 +54,7 @@ def conf(path):
     result = [ "[main]",
                "cachedir=/var/cache/mio",
                "logfile=/var/log/yum.log",
-               "reposdir=",
+               "reposdir=/dev/null",
                "pkgpolicy=newest",
                "distroverpkg=fedora-release",
                "tolerant=1",