diff --git a/site/en/about/limitations.md b/site/en/about/limitations.md
index 561e2e001..985aea6ad 100644
--- a/site/en/about/limitations.md
+++ b/site/en/about/limitations.md
@@ -19,7 +19,7 @@ Milvus is committed to providing the best vector databases to power AI applicati
 
 ## Naming rules
 
-The name of a resource can contain numbers, letters, and underscores (\_\). A resource name must start with a letter or an underscore (\_\).
+The name of a resource such the collection name, partition name, or index name can contain numbers, letters, and underscores (\_\). A resource name must start with a letter or an underscore (\_\).
 
 ## Number of resources