diff --git a/plugins/docker/docker_volumesize b/plugins/docker/docker_volumesize
index 93c4a382..3be53b5d 100644
--- a/plugins/docker/docker_volumesize
+++ b/plugins/docker/docker_volumesize
@@ -12,6 +12,7 @@ Michael Grote (michael.grote@posteo.de)
 =head1 MAGIC MARKERS
 
 #%# family=auto
+#%# capabilities=autoconf
 
 =head1 LICENSE