diff --git a/rcl_yaml_param_parser/README.md b/rcl_yaml_param_parser/README.md
index d86f03d..e1f1e2e 100644
--- a/rcl_yaml_param_parser/README.md
+++ b/rcl_yaml_param_parser/README.md
@@ -11,13 +11,13 @@ NOTE: It only supports canonical int and float types
 ```
 <node_namespace_string>:  # optional
   <node1_name>:
-    params:
+    ros__parameters:
       <field_name>: <field_value>
       <parameter_namespace_string>:   # optional
         <field1_name>: <field1_value>
         <field2_name>: <field2_value>
   <node2_name>:
-    params:
+    ros__parameters:
       <field_name>: <field_value>
       <parameter_namespace_string>:   # optional
         <field1_name>: <field1_value>