diff --git a/compose/03_hedgedoc/docker-compose.yaml b/compose/03_hedgedoc/docker-compose.yaml
index 6f2fd6a..fb71d59 100644
--- a/compose/03_hedgedoc/docker-compose.yaml
+++ b/compose/03_hedgedoc/docker-compose.yaml
@@ -28,6 +28,7 @@ services:
       - CMD_ALLOW_EMAIL_REGISTER=false
       - CMD_ALLOW_ANONYMOUS=false
       - CMD_ALLOW_ANONYMOUS_EDITS=true
+      - CMD_ALLOW_FREEURL=true
       - CMD_DEFAULT_PERMISSION=private
       - CMD_SESSION_SECRET={{ hedgedoc.cmd.session_secret }}
       - CMD_OAUTH2_CLIENT_ID={{ hedgedoc.cmd.client_id }}