diff --git a/varnish_ban.sh b/varnish_ban.sh
index 4a82c76..544b0ee 100755
--- a/varnish_ban.sh
+++ b/varnish_ban.sh
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 # Ban (purge) all on localhost
-varnishadm -T localhost:6082 "ban req.url ~ ." -S /etc/varnish/secret
+varnishadm -T localhost:6082 -S /etc/varnish/secret "ban req.http.host ~ $1"