diff --git a/README.md b/README.md
index dfef3abf1e5c558e648251bb2ac2096a8e4207d1..8646391f8a9855d0a6932f5a2161a725a9a4d7ba 100644
--- a/README.md
+++ b/README.md
@@ -219,6 +219,12 @@ The first time you create a container out of the xwiki image, a shell script (`/
 -	`DB_DATABASE`: The name of the XWiki database to use/create.
 -	`DB_HOST`: The name of the host (or docker container) containing the database. Default is "db".
 
+If you need to configure XWiki (e.g. modify `xwiki.properties` or `xwiki.cfg`) or perform some additional configuration, you can execute another container and attach to the running XWiki container by issuing:
+
+```console
+docker exec -it <xwiki container id> bash -l
+```
+
 ## Passing JVM options
 
 It's possible to pass JVM options to Tomcat by defining the `JAVA_OPTS` environment property.