diff --git a/pica-codimd/docker-compose.yml b/pica-codimd/docker-compose.yml
index 719fcf9b1febd3919c793aab26ac10826eeb6bad..16375fbb84bc47a6751fddf494c171cef502523b 100644
--- a/pica-codimd/docker-compose.yml
+++ b/pica-codimd/docker-compose.yml
@@ -44,7 +44,8 @@ services:
       CMD_ALLOW_PDF_EXPORT: "true"
       CMD_ALLOW_FREEURL: "true"
       CMD_CSP_ENABLE: "false"
-      CMD_MATTERMOST_BASEURL: "https://team.picasoft.net"
+      CMD_MATTERMOST_BASEURL: https://team.picasoft.net
+      CMD_DEFAULT_PERMISSION: freely
     networks:
       - proxy
       - codimd