diff --git a/_Sidebar.md b/_Sidebar.md
index 5ed3b93..0628b60 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -26,6 +26,8 @@
 
 [Upgrade Milvus with Helm Chart](https://github.com/milvus-io/milvus/wiki/Upgrade)
 
+[Scale Guide](https://github.com/milvus-io/milvus/wiki/Scale-a-Milvus-Cluster)
+
 # Similarity Metrics
 
 [Float point embeddings](https://github.com/milvus-io/milvus/wiki/Float-point-embeddings)