diff --git a/generate_config.sh b/generate_config.sh
index 9af919e3..aca57d8f 100755
--- a/generate_config.sh
+++ b/generate_config.sh
@@ -165,6 +165,7 @@ REDIS_PORT=127.0.0.1:7654
 TZ=${MAILCOW_TZ}
 
 # Fixed project name
+# Please use lowercase letters only
 
 COMPOSE_PROJECT_NAME=mailcowdockerized