diff --git a/mongo/README.md b/mongo/README.md
index 60b359731..3961752f2 100644
--- a/mongo/README.md
+++ b/mongo/README.md
@@ -101,7 +101,7 @@ First developed by the software company 10gen (now MongoDB Inc.) in October 2007
 $ docker run --name some-mongo -d mongo:tag
 ```
 
-... where `some-mongo` is the name you want to assign to your container and tag is the tag specifying the MongoDB version you want. See the list above for relevant tags.
+... where `some-mongo` is the name you want to assign to your container and `tag` is the tag specifying the MongoDB version you want. See the list above for relevant tags.
 
 ## Connect to MongoDB from another Docker container