diff --git a/docker/README.md b/docker/README.md
index 05e0594e36e2b581eaec7bcdb972d6a4c1b65035..5f35cf13ee50c9b3f46410dd4a814418930e698d 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -43,6 +43,8 @@ imp:latest
 
 * `imp:latest`: The name of the container to use (<name>:<version>)
 
+> You may use `sudo`.
+
 ### Example