diff --git a/docs/runtime.md b/docs/runtime.md
index 6defc702a..9e71a43b7 100644
--- a/docs/runtime.md
+++ b/docs/runtime.md
@@ -65,7 +65,7 @@ graph LR
         C[Phoenix app]
     end
 
-    A -.-|clusters with| standalone_node
+    livebook_node -.-|clusters with| standalone_node
     B -.->|direct function call|C
 ```