diff --git a/plugins/inputs/mongodb/README.md b/plugins/inputs/mongodb/README.md
index 42a15e156aabd..64aa2a73f2e14 100644
--- a/plugins/inputs/mongodb/README.md
+++ b/plugins/inputs/mongodb/README.md
@@ -12,7 +12,7 @@ All MongoDB server versions from 2.6 and higher are supported.
   ## For example:
   ##   mongodb://user:auth_key@10.10.3.30:27017,
   ##   mongodb://10.10.3.33:18832,
-  servers = ["mongodb://127.0.0.1:27017?connect=direct"]
+  servers = ["mongodb://127.0.0.1:27017/?connect=direct"]
 
   ## When true, collect cluster status.
   ## Note that the query that counts jumbo chunks triggers a COLLSCAN, which