diff --git a/chapters/03-repl-telegram.md b/chapters/03-repl-telegram.md
index 2f07a09..415ce64 100644
--- a/chapters/03-repl-telegram.md
+++ b/chapters/03-repl-telegram.md
@@ -4,7 +4,8 @@
 
 ```text
   read input -> build messages -> call Claude -> emit output -> repeat
-                                                     |
+                                          |
+                                          v
                                           stop_reason 'end_turn'
                                           ends the turn
 ```