diff --git a/mongo/content.md b/mongo/content.md
index 665258ed7..7c66ef039 100644
--- a/mongo/content.md
+++ b/mongo/content.md
@@ -95,7 +95,7 @@ These variables, used in conjunction, create a new user and set that user's pass
 ```console
 $ docker run -d --name some-%%REPO%% -e MONGO_INITDB_ROOT_USERNAME=mongoadmin -e MONGO_INITDB_ROOT_PASSWORD=secret %%IMAGE%%
 
-$ docker run -it --rm --link some-%%REPO%%:mongo %%IMAGE%% mongo --host mongo -u mongoadmin -p secret --authenticationDatabase some-db
+$ docker run -it --rm --link some-%%REPO%%:mongo %%IMAGE%% mongo --host mongo -u mongoadmin -p secret --authenticationDatabase admin some-db
 > db.getName();
 some-db
 ```