diff --git a/docs/concepts/architecture.mdx b/docs/concepts/architecture.mdx
index 5ddea18..6d990e6 100644
--- a/docs/concepts/architecture.mdx
+++ b/docs/concepts/architecture.mdx
@@ -15,7 +15,7 @@ MCP follows a client-server architecture where:
 
 ```mermaid
 flowchart LR
-    subgraph " Host "
+    subgraph "Host"
         client1[MCP Client]
         client2[MCP Client]
     end