diff --git a/.env.sample b/.env.sample
index 1639385..f890c92 100644
--- a/.env.sample
+++ b/.env.sample
@@ -57,3 +57,4 @@ COMPOSE_FILE="compose.yml"
 # Only present in config.json (no equivalent env var):
 # DOCUMENT_MAX_LENGTH=100000
 # CMD_ENABLE_UPLOADS=registered
+# CMD_LOGLEVEL=info
diff --git a/compose.yml b/compose.yml
index 67fe42a..b3a739a 100644
--- a/compose.yml
+++ b/compose.yml
@@ -27,6 +27,7 @@ services:
       - CMD_SESSION_SECRET_FILE=/run/secrets/session_secret
       - DOCUMENT_MAX_LENGTH
       - CMD_ENABLE_UPLOADS
+      - CMD_LOGLEVEL=${CMD_LOGLEVEL:-info}
     networks:
       - proxy
     volumes: