diff --git a/lib/operations/mongo_client_ops.js b/lib/operations/mongo_client_ops.js
index 7d56954e27..3bf7552ff7 100644
--- a/lib/operations/mongo_client_ops.js
+++ b/lib/operations/mongo_client_ops.js
@@ -593,7 +593,7 @@ function validOptions(options) {
 
     if (legacyOptionNames.indexOf(name) !== -1) {
       console.warn(
-        `the server/replset/mongos options are deprecated, ` +
+        `the server/replset/mongos/db options are deprecated, ` +
           `all their options are supported at the top level of the options object [${validOptionNames}]`
       );
     }