diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 69227d812faae73750e3cd80a409da83ed9a5bed..b18fe7714b033bdb7aad988527fbd909f75a53c7 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -308,6 +308,7 @@ Start bbb-web
 
 ```
 gradle resolveDeps
+grails clean
 grails -Dserver.port=8888 run-war
 ```