diff --git a/mongodb/README.md b/mongodb/README.md
index f004e283..977d9e60 100644
--- a/mongodb/README.md
+++ b/mongodb/README.md
@@ -37,6 +37,8 @@ c8fc42d19fd3        <username>/mongo:latest   /usr/bin/mongod     4 minutes ago
 
 To test:
 
+You will need mongo client tool installed on your system to issue the next command.
+
 ```
 # mongo --host localhost --port 49158