diff --git a/Procfile b/Procfile
index 7917067..1953a78 100644
--- a/Procfile
+++ b/Procfile
@@ -1 +1 @@
-web: /bin/go-camo --socket-listen=/var/run/cabotage/cabotage.sock --server-name=https://github.com/pypi/camo --max-size=$GOCAMO_MAXSIZE --max-size-redirect=$GOCAMO_MAXSIZEREDIRECT
+web: /bin/go-camo --socket-listen=/var/run/cabotage/cabotage.sock --server-name=https://github.com/pypi/camo --max-size=$GOCAMO_MAXSIZE --max-size-redirect=$GOCAMO_MAXSIZEREDIRECT --header="Access-Control-Allow-Origin: $ALLOW_ORIGIN"